Arectangular poster has one side of length x inches and to- tal area 700 square inches. the poster must have margins so that the region available for printing has area a(x) = 728 − 7x − 2800 square inches x what are the dimensions of the poster with the greatest printing area?

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation:

income. 10x+1300

expenses 3x+(1800+1500)

expenses 3x+3300

to break even:

income = expense,

10x + 1300 = 3x + 3300,

solve for x.

step-by-step explanation:

mark brainliest