C=2.75x+2.00 & c=1.75x+8.00 so how do i solve for x?

Acylinder has volume 45π and radius 3. what is it’s height?

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*