HELP PLZ AND THANK YOU

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319