In planning her retirement, Liza deposits some money at 2% interest, with twice as much deposited at 3.5%. Find the amount deposited at each rate if the total annual interest income is $1620.
Use this equation: P*r*t. Plug in the percentage, rate, and time (years) to solve for your interest! It's a simple problem and It would be good if you used that equation for these problems. Hope it helps!