3)Your uncle gives you \( \$ 100 \) and deposits it into a savings account that pays simple interest of \( 6 \% \) per year. How much will you earn in interest for the year?

(4) At the beginning of the year you have \( \$ 450 \) in your savings account and you are earning simple interest of \( 3.5 \% \) for the year. How much will you have at the end of the year?

5) Simple interest at \( 7 \% \) on \( \$ 5,000 \) would be how much?