A river tubing company rents tubes to go down the river. A one-person tube rents for $20 and a tube that holds a cooler rent for $12.50. A group spends $270 to rent a total of 15 tubes. How many tubes of each kind did they rent?

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25

Tyler went to the supermarket to buy food for a food pantry. he has $36, and can carry up to 20 pounds of food in his backpack. pasta costs $1 for a 1-pound package. pasta sauce costs $3 for a 1.5 pound jar. let x = the number of packages of pasta and y = the number of jars of pasta sauce. one package of pasta is the right amount to go with one jar of pasta sauce. what is the best numbers of packages of pasta and jars of pasta sauce to buy for the food pantry? how many packages of pasta? how many jars of pasta sauce? explain your reasoning.

Louis wants to give \$15 to kids who need school supplies. he also wants to buy a pair of shoes for \$39. how much money will he have to save for both?