Volume formula for a hemisphere and sphere?

My momma and daddy was fightin last night.

Which expression is equivalent to 2x^2 - 3x? A) - x^2 B) - 2x^2 + 3x C) 2x^2 - 3x D) x^2

Which graph best represents the solution to the system of equations shown below? y = - 2x + 14 y = 2x + 2

4r+3=r+21 How do I do this?

A regulation basketball hoop has a rim with an 18in diameter. what is the approximate length around the rim?

Which system of equations has exactly one solution? - 2x-4y = 8 x+y=7 3x+y=-1 x-2y = -2 3x+3y=3 -Ex-by=3 3x-2y=4 -3x+2y=4

The side length of a square is shown. Which expressions are equal to the perimeter of the square? (w-2) Select all that are correct. 2 (w - 2) + 2 (w - 2) w + w + w + w - 2 - 2 - 2 - 2 4w - 2 2w - 4 4 (w - 2)

115 and 125 as a decimal

There is a spinner with 14 equal areas, numbered 1 through 14 if the spinner is spun one time what is the possibility that the result is a multiple of 6 or a multiple of 4

Which expression is equivalent to (73) - 2?