Using disks ...

The volume is 21π units³ ≈ 65.97 units³
Answer:
the scale factor is 2, but x is 11
Step-by-step explanation:
The least common multiple between those following numbers is C. 90.
Answer:
C
Step-by-step explanation:
Given
30(
x - 2) + 40(
y - 4)
Multiply each of the terms in the first parenthesis by 30 and multiply each of the terms in the second parenthesis by 40.
= 15x - 60 + 30y - 160
= 15x + 30y - 220 → C