If im counting backwards by 100s, starting at 815 how many times would it take me to get to 15.

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m