18 is 60% of 30. I know this because 10% of 30 is 3 and 3 * 6 is 18
14= 4 pi/6 pi = 2/3
15 = 8 pi/10 pi = 4/5
16 = no
ivan used 5 yards of green for each quilt and 4 yards of blue for each quilt.
Answer:
B . S /2rh =pi
Step-by-step explanation:
S = 2* pi * r*h
We are solving for pi
Divide both sides by 2rh to isolate pi
S/ 2rh = 2 * pi *r* h / 2rh
S /2rh =pi
