When you find more than 100% of a number , how does your answer relate to the original number

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

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)