What is the absolute value of -4.5 -4.5

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x