Anthony sells cars. Each month, he is paid $2,000, plus a 15% commission on monthly sales above $20,000. Which function calculates his monthly earnings (E) as a function of m, his monthly sales? E(m) 2,000+ 0.15(m-20,000) OE(m) 2,000+ 0.15(m + 20,000) = = OE(m) 2,000 + 15(m-20,000) = O E(m) 2,000 + 15(m + 20,000)