Alex borrowed $12.50 from his friends danilo he paid him back $8.75. how much does he still owe

Will give brainliest what is the value of x? enter your answer in the box.

Acircle has a circumference of 28.36 units what is the diameter of the circle

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