Question 150739
semi-annually means two compoundings per year; each at half the yearly interest rate


a=p(1+r)^n


a is 75000 __ p is the principle (what we're trying to find) __ r is 4.9%/2 or .0245 __ n is 15*2 or 30


75000=p(1.0245)^30 __ dividing by (1.0245)^30 __ 7500/[(1.0245)^30]=p __ 36282.93=p