exam Maths Puzzle Numerical Ability

how do you graph inequalities on a number line

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exam Other Question

I am absolutely speechless with this problem. I have asked everyone I know and looked for help and nothing. Please help me.

The problem is:

V=(pi)R^2h-(pi)r^2h Solve for r^2
these r my questions i need the answers 4 tomorrow so pls figure them out

u gotta figure out the value of "x"

7x=7=5x-11 3x=13=9-5x 4x-8=6x-14