Caleb learned 9 appetizer recipes in 3 weeks of culinary school. How many weeks of culinary school will Caleb have to attend in all before he has learned a total of 78 appetizer recipes? Solve using unit rates.

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.

What’s the range cuz i can’t find it?