Answer:
$85
Step-by-step explanation:
445-20=425 425 ÷5= 85
12=5x-13x-44
combine like terms
12 = -8x -44
add 44 to each side
12+44 = -8x
56= -8x
divide by -8 on each side
56/-8 = x
-7 =x
f(n) = 8.5n
$8.50 * n = Gross