Gabe rents a piano for $49 per month. he earns $15 per hour giving piano lessons to students. let h be the number of hours of lessons per month he must give to earn a profit of $326

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?