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OG15 OG16 OG17 OG18 OG19 OG20 OG2022	At his regular hourly rate, Don had estimated the labor cost of a repair job as $336 and he was paid that amount. However, the job took 4 hours longer than he had estimated and, consequently, he earned $2 per hour less than his regular hourly rate. What was the time Don had estimated for the job, in hours?
OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022	if $$\frac{p}{q}$$<1, and p and q are positive integers, which of the following must be greater than 1 ?
OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022	If n is a positive integer and $$k = {5.1}{10}^{n}$$, what is the value of k ?(1)$$6,000 < k < 500,000$$(2)$${k}^{2}={2.601}{10}^{9}$$
OG12 OG15 OG16 OG17	If x is an integer, is $$x \mid x \mid < {2}^{X}$$ ?(1)$$x < 0$$(2)$$x = -10$$
OG12 OG15 OG16 OG17	It would take one machine 4 hours to complete a large production order and another machine 3 hours to complete the same order. How many hours would it take both machines, working simultaneously at their respective constant rates, to complete the order?
OG12 OG15 OG16	Every member of a certain club volunteers to contribute equally to the purchase of a $60 gift certificate. How many members does the club have?(1)Each member's contribution is to be $4.(2)If 5 club members fail to contribute, the share of each contributing member will increase by $2.
OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022	To mail a package, the rate is x cents for the first pound and y cents for each additional pound, where x > y. Two packages weighing 3 pounds and 5 pounds, respectively, can be mailed separately or combined as one package. Which method is cheaper, and how much money is saved?
OG12 OG15 OG16	If $$x < 0$$, is $$y > 0$$ ?(1)$$\frac{x}{y}<{0}$$(2)$$y-x >0$$
OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022	If money is invested at r percent interest, compounded annually, the amount of the investment will double in approximately $$\frac{70}{r}$$ years. If Pat's parents invested $5,000 in a long-term bond that pays 8 percent interest, compounded annually, what will be the approximate total amount of the investment 18 years later, when Pat is ready for college?
OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022	On a recent trip, Cindy drove her car 290 miles, rounded to the nearest 10 miles, and used 12 gallons of gasoline, rounded to the nearest gallon. The actual number of miles per gallon that Cindy's car got on this trip must have been between
OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022	What is the value of x + y in the figure above?(1)W=95(2)Z=125
OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022	Which of the following inequalities is an algebraic expression for the shaded part of the number line above?
OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022	If n and k are positive integers, is $$\sqrt{n+k} >2\sqrt{n}$$?(1)$$k > 3n$$(2)$$n + k > 3n$$
OG12 OG15 OG16	A factory has 500 workers, 15 percent of whom are women. If 50 additional workers are to be hired and all of the present workers remain, how many of the additional workers must be women in order to raise the percent of women employees to 20 percent?
OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022	In a certain business, production index p is directly proportional to efficiency index e, which is in turn directly proportional to investment index i. What is p if i = 70 ?(1)e = 0.5 whenever i = 60.(2)p = 2.0 whenever i = 50.
OG12 OG15 OG16	If n is a positive integer, is$${(\frac{1}{10})}^{n}<0.01$$(1)$$n >2$$(2)$$(\frac{1}{10})^{n-1}<0.1$$
OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022	In a small snack shop, the average (arithmetic mean) revenue was $400 per day over a 10-day period. During this period, if the average daily revenue was $360 for the first 6 days, what was the average daily revenue for the last 4 days?
OG12 OG15 OG16 OG17	A certain country had a total annual expenditure of $$$1.2 \times {10}^{12}$$ last year. If the population of the country was 240 million last year, what was the per capita expenditure?
OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022	If n is a positive integer, what is the tens digit of n ?(1)The hundreds digit of 10n is 6.(2)The tens digit of n + 1 is 7.
OG12 OG15 OG16 OG17	The diagram above shows the various paths along which a mouse can travel from point X, where it is released, to point Y, where it is rewarded with a food pellet. How many different paths from X to Y can the mouse take if it goes directly from X to Y without retracing any point along a path?