Step-by-step explanation:

Answer:
132 
Step-by-step explanation:
Triangle formula is 1/2 bh (4x3/2) is 6 (4 triangles)=24
Base is 6x8=48
sides are 6x5=30 then multiply by 2 of the sides =60
add all together
Y=-4x+10
I hope this helped you
First change 7/20 into a decimal fraction: 35/100.
Then multiply this result by 100%: 35%