Solve for x.

Please help!

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

Simplify the expression. -2/5(10+15m-20n)

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1