In which quadrant are the x coordinates and the y coordinants of a piont both negitive

Just tell me how to set up the equation.

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

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.