Final answer:
The salesperson's total earnings from last week were $1,537.50, which includes a base pay of $625 and a 5% commission on $18,250 worth of sales.
Step-by-step explanation:
The subject of this question is Mathematics, specifically, it deals with calculating total earnings which include base pay and commission based on sales.
The salesperson earns a fixed salary of $625 per week and receives an additional 5% commission on their sales. To calculate the total earnings, we need to compute the commission earned from the sales and add it to the fixed weekly salary. The student stated that the salesperson's sales were $18,250 last week.
To calculate the commission, we use the formula:
Commission = Sales × Commission Rate
So, Commission = $18,250 × 0.05 = $912.50
Now, we add the commission to the fixed weekly salary:
Total Earnings = Fixed Salary + Commission
Total Earnings = $625 + $912.50 = $1,537.50
Therefore, the total earnings from last week were $1,537.50.