Answer:
5
Step-by-step explanation:
Substitute the given values and do the arithmetic.
v=pi * rayon² * h
v= 3.14 * 3² *4
v= 3.14 * 9 * 4
v= 113.04
B and C
Distribute
4x^2 + 10x = 4x^2 +10x
30x^4 - 12x^3 = 30x^4 - 12x^3
Step-by-step explanation:kkbg g