Cracking The SAT Premium

A) 2%

B) 7%

C) 28%

D) 51%

12 .The cost in dollars, C, of producing a custom-made T-shirt with a team logo is given by

the formula C   =   110 +    ,  where   x   is  the number  of  T-shirts    produced.   When    every   T-shirt

produced    is  sold,   the revenue from    selling the customized  T-shirts    is  given   by  R   =   15x −   

. Which one of the following would be the formula for the profit from producing and

selling x   T-shirts?

(Profit =   Revenue –   Cost)

A)

B)

C)

D)

13 .While on vacation in Morocco, Erik decided to splurge on a fancy hotel that cost 2,000
Moroccan dirhams per night. If he stayed in that particular hotel for three nights, but his
bank only lets him withdraw $200 at a time, how many visits to the ATM must Erik have
made in order to cover the cost of his hotel stay?

(Note:  1   Moroccan    dirham  =   $0.11)

A) 1

B) 2

C) 3

D) 4

14 .Peter’s Petrol Station is selling regular unleaded gas for $3.49 a gallon and premium gas
for $3.79 a gallon. If a car wash is purchased, then a discount of $0.10 per gallon is
applied. During one morning, a total of 850 gallons of gas was sold, and 100 gallons were
sold at the discounted rate. The total collected in sales was $3,016.50. Solving which of
the following systems of equations yields the number of regular unleaded gallons of gas, u,
and the number of premium gallons of gas, p, that were sold during that morning?
A) u + p = 850