Answer:
12
Step-by-step explanation:
1/2a+b=
1/2*10 + 7 =
5+7= 12
1/2 × 10 + 7
=5+7
=12
..................
1.6 = 1 + .6 = 60% growth rate
152.9 ft
14*8=112
8*4=32
112+32+8.9=152.9