2. mrs. dunbar will receive a salary increase of 5%. if she now earns $650 a week, how much will she earn…

Explanation:

Step1: Calculate the amount of the raise

The raise is 5% of her current salary. The formula for finding a percentage $p$ of a number $x$ is $p\times x$. Here, $p = 0.05$ (since 5%=$\frac{5}{100}=0.05$) and $x = 650$. So the raise amount is $0.05\times650 = 32.5$.

Step2: Calculate the new - salary

The new salary is the sum of the current salary and the raise. Let the current salary be $x = 650$ and the raise amount be $r=32.5$. Then the new salary $y=x + r=650+32.5 = 682.5$.

Answer:

A. $682.50