A used book store started selling CDs and videos. In the first week, the bookstore started selling 40 CDs and videos. They charged $4 per CD and $6 per video. The total sales was $180. Which system of equations corresponds to this situation?

Yoku is putting on sunscreen. he uses 2\text{ ml}2 ml to cover 50\text{ cm}^250 cm 2 of his skin. he wants to know how many milliliters of sunscreen (c)(c) he needs to cover 325\text{ cm}^2325 cm 2 of his skin. how many milliliters of sunscreen does yoku need to cover 325 \text{ cm}^2325 cm 2 of his skin?

What is the solution to the equation in the & show work i’m very

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?