ANSWER
A. 22 in
EXPLANATION
The volume of a cone is calculated using the formula:

It was given that: the volume is 2,279.64 in³
The height of the cylinder is also given as: h=18 in.
We substitute, the given values into the formula to get:




We take positive square root to get;


Therefore the diameter is 2(11) which is equal to 22 inches.
Answer:
12.083
Explanation:
Plug into a calculator.
Answer:
B) 451
Step-by-step explanation:
1) 414 + 125 = 539
2) 539 - 88 = 451
i have no idea about a but
B. LN corresponds to EF
MN corresponds to DF
E corresponds to L
F corresponds to N