Section: Math

3) Marsha is a power seller on eBay and her gross sales for each month are represented as x. She must pay the platform 1/3 of this total along with a flat "storefront" fee of $10 per month. Which equation below represents her final sales after all fees?

1. ²/₃x-10
2. ¹/₃(x-10)
3. ¹/₃x-10
4. ²/₃(x-10)

The fraction ¹/₃ would not be part of any correct answer since the equation represents the final sales of Marsha, so you can eliminate answers 2 and 3 right away. That leaves Answers 1 and 4. Since the parentheses in Answer 4 would mean that you would need to multiply both figures by the fraction, that cannot be correct either. Answer 1 is the only correct answer.