Question

Eric sells shirts. It costs him $100 to buy all the shirts and $10, total, to print designs on them. Eric sells each shirt for $4. So far he has sold 20 shirts. He uses the equation y = 4x - 110 to calculate his profit.

What is the constant in Eric’s equation?
A) 4
B) -10
C) 20
D) -110

Answer 1

C) 20 is the constant. He can plug in the 20 into the value of x (shirts sold) to solve for y (profit).