Tính cộng phân thức sau
5/2x^2y+3/5xy^2+x/y^3

Arrange these numbers from least to greatest 3/5 5/7 2/9

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b.you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c.you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d.you spend $5 plus $10 per week until you have less than $45.

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