algebra
posted by plz help on .
Let cost = 600.00 fixed costs
x = set of tiles $11.00
find the profit equation by substituting your equations for R and C P = R C THE profit made for 26 and 31 tiles per month.
2nd part;
use trail and error to find the quanity of tile sets per month yields the highest profit.

the fundraiser will cost $1.50 per pencil plus $50.00 in advertising. write an equation that represents the cost, c, for n pencils