Question

The profit from the lemonade sale can be modeled by P = c - 25. How many cups need to be sold to break even (make a profit of $0)?

Answer 1

25 cups because 25-25=0

Answer 2

If P needs to equal a number ≥ 0 then the equation should be 0 = c - 25

Thus C = 25 0 = 25 - 25