Exactly 10 min after Alex left his grandparents' house, his cousin Kelly set out from there to overtake him. Alex drives at 36 mi/h. Kelly drives at
40 mi/h. How long did it take Kelly to overtake Alex?

An energy plant is looking into putting in a system to remove harmful pollutants from its emissions going into earth's atmosphere. the cost of removing the pollutants can be modeled using the function c = 25000p/100 -p what is the vertical asymptote?

In the given figure ar(adf) =ar(cda) and ar(cdf) = ar(cdf). show that abdc and cdfe are trapeziums.

Solve the system of equations. 2x-2y=-4 and x+y=8. show work