A salesperson earns a flat monthly salary, plus a percentage of the items sold. Which of the following functions could model the salesperson's total earnings?
A.y=0.1x^2+1,400
B.y=0.15^x+800
C.y=0.06x+1,200
D.y=0.08x^3+1,500
A.y=0.1x^2+1,400
B.y=0.15^x+800
C.y=0.06x+1,200
D.y=0.08x^3+1,500
