Question

Just number 37 in picture please ASAP.

Answer 1

80=6*5*x
x=80/(6*5)
x=2.666...

Therefore 4(5*6) + 2(5*2.666..) = 146.66 =147 (3.s.f)

Answer 2

the equation would be 80 = 6*5*X and then do 2 (6*5) +2 (5*x)+ 2 (6*x)=S.A.