Answer:
a
Step-by-step explanation:
8 cm
[(x+5)*2.5]/2 = 16.25
(x+5)*2.5 = 32,5
2.5x + 12,5 = 32,5
2.5x = 20
x = 8
answer :138
x/3=46
x=46*3
x=138
2 over the power of 3
The answer is i think -12*2
