The length of one leg of a right triangle is 21 ft and the length of the hypotenuse is 29 ft. what is the length of the other leg? 35.8 feet 20.0 feet 50.0 feet 25.0 feet

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

Graph the equation by plotting point x=2

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103