Solve the equation to find h.
h/5 +21=-16
h=?

Louis wants to carpet the rectangular floor of his basement.the basement has an area of 864 square feet.the width of the basement is 2/3 it's length. what is the length of louis's basement

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.