-(x-3)=-7 I need help with this equation

What is the definition of exponential decay?

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Someone answer asap for ! michele pushes a box d meters across a floor. she uses a force f, in newtons, to push the box. she pushes the box for t seconds. the formula p = fd/t calculates the power, p, in watts, that it takes for michele to complete the task. solve the formula for d.