Brad deposited $4,000 into a savings account that earn 4% compound interest. How much interest did he earn after three years?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

Find the solution of each of the following.