Final answer:
By dividing Peggy's total savings of $9,215 by her hourly wage of $45, we find that she approximately worked for 205 hours.
Step-by-step explanation:
To find out approximately how many hours Peggy worked to save $9,215 at the rate of $45 per hour, we need to divide the total amount saved by the hourly wage. This calculation will give us the total number of hours worked.
Hours worked = Total savings ÷ Hourly wage
Hours worked = $9,215 ÷ $45
Hours worked = 204.78
Therefore, Peggy worked approximately 205 hours at the rate of $45 per hour to save $9,215.