If all accounts earn 1.5% interest per year and no further deposits are made, how much will letisha have earned one year after her accounts were opened?

Letisha will have earned however much money she began with plus 1.5 percent. This can be found by taking the initial principal on January 1 of the previous year, multiplying it by 0.015, and adding the result to the previous balance to get the end-of-year total.