Answer:
3%.
Step-by-step explanation:
We have been given that Erin's hourly salary went from $9.00 to $9.27. We are asked to find percent raise in Erin hourly salary.
\(\text{Percent increase}=\frac{\text{Final}-\text{Initial}}{\text{Initial}}\times 100\)
\(\text{Percent increase}=\frac{9.27-9}{9}\times 100\)
\(\text{Percent increase}=\frac{0.27}{9}\times 100\)
\(\text{Percent increase}=\frac{0.27\times 100}{9}\)
\(\text{Percent increase}=\frac{27}{9}\)
\(\text{Percent increase}=3\%\)
Therefore, percent raise in Erin's hourly salary is 3%.
