Jimmy invests $15,000 in an account that pays 8.90% compounded quarterly. how long (in years and months) will it take for his investment to reach $22,000?

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?

Find the area of the surface obtained by rotating the curve z=4e^2y from y = 0 to y =1 about the y-axis. the area is square units

Perform the indicated operation and write the answer in the form a + bi. (-5 + 2) + (3 - 6i)