Ihave another question, explain don't just give me an answer. i need on 18 part a, b, and c

Fo part a: You would have the answer of 6x +12 since both side is x (2x together) then the longer side would be 2x+6 but then u would have to multiply by 2 since there are 2 sides (4x+12) Then if u combined it you would get 6x+12 for part a

A. the perimeter is each side added together, so the perimeter is:
2(x) + 2 (2x+6) <---tennis court
perimeter = 6x+12

2 (1/2x+32) + 2(3x-14) <---basketball court
perimeter = 7x+36

b. 7x+36-(6x+12) <---x+24

c. 2x+6=36
2x=30
x=15

tennis court is 36ft ×15ft
basketball court is 31ft × 39.5ft

The answer is part a: use