QUESTIONS AND ANSWERS
A babysitter earns $8 an hour for babysitting 2 children and an additional $3 tip when both
children are put to bed on time. If the babysitter gets the children to bed on time, what
expression could be used to determine how much the babysitter earned?
A) 8+3x , where x is the number of hours
B) 3+8x , where x is the number of hours
C) x(8 + 2)+3, where x is the number of children
D) 3+(8 + 2)x , where x is the number of children - ANS B
In a certain game, a player can solve easy or hard puzzles. A player earns 30 points for solving
an easy puzzle and 60 points for solving a hard puzzle. Tina solved a total of 50 puzzles playing
this game, earning 1,950 points in all. How many hard puzzles did Tina solve?
A) 10
B) 15
C) 25
D) 35 - ANS B
To cut a lawn, Allan charges a fee of $15 for his equipment and $8.50 per hour spent cutting a
lawn. Taylor charges a fee of $12 for his equipment and $9.25 per hour spent cutting a lawn. If x
represents the number of hours spent cutting a lawn, what are all the values of x for which
Taylor's total charge is greater than Allan's total charge?
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, A) x > 4
B) 3 ≤ x ≤ 4
C) 4 ≤ x ≤ 5
D) x < 3 - ANS َA
n = 456 - 3T
The equation above is used to model the relationship between the number of cups, n, of hot
chocolate sold per day in a coffee shop and the average daily temperature, T, in degrees
Fahrenheit. According to the model, what is the meaning of the 3 in the equation?
A) For every increase of 3 F, one more cup of hot cholate will be sold.
B) For every degree decrease of 3 F, one more cup of hot chocolate will be sold.
C) For every increase of 1 F, three more cups of hot chocolate will be sold.
D) For every decrease of 1 F, three more cups of hot chocolate will be sold. - ANS D
If f(x-1) = 2x+3 for all values of x, what is the value of f(-3)?
A) -7
B) -5
C) -3
D) -1 - ANS D
A truck enters a stretch of road that drops 4 meters in elevation for every 100 meters along the
length of the road. The road is at 1,300 meters elevation where the truck entered, and the truck
is traveling at 16 meters per second along the road. What is the elevation of the road, in
meters, at the point where the truck passes t seconds after entering the road?
A) 1,300 - 0.04t
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