Been stuck on this very long hope am not causing trouble if someone can help

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse