Step-by-step explanation:
4. b 612 (72/100) x 850)
5. c. 275 (33/100) x 835
6. b. 39% (3.24 - 2.85) x100%)
I think the correct answer is 560ft^2.
Divide 7 by 8 then multiply what you get by 100.
He would need to sell 28 because
12.50*28=350 and 350+50=400
