Answer:
351.86 feet squared
Step-by-step explanation:
surface area= 2 π r h + 2 π r^2
20.
As P is the mid point so
2x + 3 = x + 7
transpose
2x - x = 7 -3
x = 4
21.
4x + 3 = 8x - 11
4x - 8x = -11 -3
-4x = -14
x = 14/4
x = 7/2
x can also be 3.5
22.
7x - 3 = 5x + 2
7x - 5x = 2 + 3
2x = 5
x = 5/2
x can also be 2.5
Can't answer this without knowing the height of the rectangle ...
64/19
OR
3 7/19
depending on how you need to write it
690
12×36 + 258 = 690 For extending to 20 characters
