Hi
the volume formula is
V=4 /3 * πr3
27). 8a+7
28). 10k-1
29). 2n-48
30). x+16
31). 14b+3c-3
32) -2y=10
Answer:
sorry if this is wrong
Step-by-step explanation:
a. 3
b.15
c.8
x = 4
6x - 9 = 15
6x - 9 + 9 = 15 + 9
6x = 24
6x / 6 = 24 / 6