An animal shelter has a ratio of cats to dogs that is 9:7. What fraction of these animals are dogs?

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

The weekly revenue for a company is r = 3p^2 + 60p + 1060, where p is the price of the company's product. what price will result in a revenue of $1200.