V( cone ) = 21 cm³
note Vof cone = V of cylinder
V ( cone ) = × 63 = 21 cm³
I think the approximate perimeter of the parallelogram is 30 square units. But I am not 100% sure.
6x + x + x - 5 - 2 = 8 + 2x + x
combine like terms
8x -7 = 8 +3x
subtract 3x from each side
5x -7 = 8
add 7 to each side
5x = 15
divide by 5
x=3
Answer: 8x -7 = 8 +3x
x=3
<span>B is the correct answer just took test </span>
If you put the numbers in order
The middle numbers will be 14,16
14+16 = 30
You divide by 2
ANSWER = 15