Answer:
7.5
Step-by-step explanation:
2x+12=6x-18
2x=6x-30
-4x=-30
x=7.5
1. Josh's father: f Josh: f/2 - 2
2. f + (f/2 - 2) ≥ 49
3. 3/2 f - 2 ≥ 49
3/2 f ≥ 51
3f ≥ 102
f ≥ 34
4. 34
area=πr²=3.14×4²=50.24ft²
w = 9/8