Jasmine's earnings consist of two parts: her hourly wage and her commission on sales. Her hourly wage is $9 per hour, and she earns an additional 3% commission on the total sales credited to her.
Let's call the total amount of sales credited to Jasmine "S". We want to find the value of S that will allow Jasmine to earn exactly $300 next week.
Jasmine will work a total of 20 hours next week, so her earnings from her hourly wage will be:
Earnings from hourly wage = Hourly rate x Number of hours worked
Earnings from hourly wage = $9/hour x 20 hours
Earnings from hourly wage = $180
To earn a total of $300 next week, Jasmine will need to earn an additional:
Additional earnings = Total earnings - Earnings from hourly wage
Additional earnings = $300 - $180
Additional earnings = $120
We know that Jasmine's commission on sales is 3% of the total amount of sales credited to her. Therefore, her commission earnings can be expressed as:
Commission earnings = 0.03 x S
We want Jasmine's total earnings to be exactly $300, so we can set up the following equation:
Total earnings = Earnings from hourly wage + Commission earnings
$300 = $180 + 0.03S
$120 = 0.03S
S = $4,000
Therefore, the total amount of sales that must be credited to Jasmine next week so she will earn exactly $300 is $4,000. Answer: C. $4,000.