Question

. & 12.
The monthly revenue and cost equations for Rob's Refrigerators are as
follows:
r: number of refrigerators sold
16 R: Revenue
C: Cost
.
R = 3r2 +160r
C = 4r2 +12r + 715
How many refrigerators must Rob sell in order to make a profit?

Answer 1

R is 3r2 +160r I think