Question

HELP ME ASAP PLEASE. I WILL GIVE LOTS OF POINT. ASAP

Answer 1

5) 2l * 2w = 140

6) l * w = 1200

7) w = 70 - l

8) x = 30 or x = 40

Explanation:

7) 2w = 140 - 2l

w = (140 - 2l) / 2

w = 70 - l

8) l (70 - l) = 1200

70l - l^2 = 1200

-l^2 + 70l - 1200 = 0

-30 * -40 = 1200