What is the approximate area of the geometric figure? A) 7.5 square units B) 8.5 square units C) 9 square units Eliminate D) 10.5 square units

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

Simplify the expression. -2/5(10+15m-20n)

Barbara deposited $300 in the bank. if the bank pays her simple interest at the rate of 4 percent per year, how much money will she have in her account at the end of 9 months?