during one week i sell books valued at $800. if I earn $450 per week plus 5% commission, how much do I earn this week

To determine your total earnings for the week, we need to calculate both your fixed weekly earnings and the commission from selling books.

1. **Fixed weekly earnings**: $450
2. **Commission**: 5% of the total book sales

Let's calculate the commission first:

\[ \text{Commission} = 0.05 \times 800 = 40 \]

Now, add the fixed earnings to the commission to find the total earnings:

\[ \text{Total earnings} = 450 + 40 = 490 \]

So, you earn $490 this week.

Would you like any further details or explanations?

Here are some more questions you might find interesting:
1. How much would you earn if you sold books valued at $1,200 in a week?
2. What is your total earning if your commission rate increases to 7%?
3. How much commission would you earn if you sold $500 worth of books?
4. What is your total earning if you sell no books in a week?
5. How much total earnings would you have in a month (4 weeks) with consistent book sales of $800 each week?

**Tip:** When calculating earnings involving a base salary plus commission, always calculate the commission separately and then add it to the base salary to find the total earnings.

Learn how to calculate weekly earnings based on a fixed salary and commission from book sales. This problem involves arithmetic calculations and percentage formulas. Suitable for students in Grades 6-8.

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