Earl mows lawns one weekend. he earns $12 for each lawn that he mows. he spends $40 on gas and other supplies.
what function equation represents earl's profit from mowing x lawns?
f(x)=40x+12f(x)=40x+12
f(x)=40x−12f(x)=40x−12
f(x)=12x−40f(x)=12x−40
f(x)=12x+40