Which expression represents the value, in dollars, of a certain number of quarters, q, and nickels, n? 0.30qn 0.30q + n 0.25q + 0.05n 0.05q + 0.25n

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ac=26 and ch=8, find bh.

Ana earns 2.5% simple interest on $2,000 in her savings account. she does not make any deposits or withdrawals. after 3 years, how much interest will ana have earned on her savings account?