A math club receives a 12% discount on calculators. If each calculator costs $15 before the discount, how much will the club spend on 60 calculators after the discount? A. $108
B. $180
C. $792
D. $900

How to solve it and what thw answer is

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers