perimeter means add the side
(x+4) +( x+8)+(2x-3) =P
x+x+2x+4+8-3=P
4x-9 =P
Answer:
3.42
Step-by-step explanation:
6 ÷ 1
12 ÷ 2
18 ÷ 3
24 ÷ 4
864 ÷ 144
79.86 ÷ 13.31