Problem
Seventh grade P.12 Simple interest ETY Amanda has $\$ 900$ in a savings account that earns $15 \%$ annually. The interest is not compounded. How much interest will she earn in 2 years? 4) Use the formula $i=p r t$, where $i$ is the interest earned, $p$ is the principal (starting amount), $r$ is the interest rate expressed as a decimal, and $t$ is the time in years. $\$$ Submit
Solution
Step 1 ：Use the formula for simple interest: \(i = prt\)
Step 2 ：Plug in the values: \(i = 900 \times 0.15 \times 2\)
Step 3 ：Simplify the expression: \(i = 270\)
Step 4 ：Therefore, Amanda will earn \(\boxed{270}\) in interest over 2 years.
