Y=-1,X+2y=-6 solve by substitution show all work

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

What’s the answer ? use the picture to see the problem

Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?