14.33, 13.22, 12.11, 11.00, whats next?

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

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.

What is the the greatest common factor ?