Anybody wanna do my math work for me . It's math 1

On a piece of paper graph f(x)=5•(0.4)^x

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

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.