Question

Joe is mowing lawns to buy a new car. For every lawn that he mows he earns $20. Joe charges a one time clean up fee of $50 before he takes on a new client. The function that Joe uses to determine how much he will make is: f(x) = 20x + 50. If Joe mows 5 lawns how much will he make

Answer 1

f(x) = 20(5) + 50
f(x) = 100 + 50
f(x) = 150

Answer 2

x=5
f(x)= 20(5)+50
f(x)=100+50
f(x)=150