21x + 28 = 156 - 2
21x = 154 - 28
21x/21 = 126/21
X = 6
Answer: We have to find the volume of a sphere, provided its radius:

The formula for sphere volume is:

Therefore now we can find the volume, because we have the value of the Radius of the sphere, and we do it next.!

Simplification gives:
Answer:
x=8
Step-by-step explanation:
7+5x
so basically what you have to do is take the 7 and subtract from both sides
so like this: 7-7 is 0 so that cancels then 47-7 is 40
then you take 5x and divide 40 by 5
so x=8
hope this helped!
Answer:
=4/3 or 1 and 1/3
If it is not provided in the answer then put no solution.
Step-by-step explanation:
Answer:
14 inches
Step-by-step explanation:
Perimeter of a rectangle
= 2(l + w)
Given length L = 3 inches and
Width w = 4 inches
Perimeter = 2(3 + 4)
Simplify the bracket
2 x 7
14 inches