Why the set of of mixed numbers is not a subset of the set of integers?

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Juanita wade's new car has an msrp of $28,902.11 including title and processing fees. the premier package which includes surround sound and dvd player costs three times the amount of the in-style package which includes leather seats and select wheels. the total cost of her new car was $34,290.08 which included the 6.5% sales tax. find the cost of the premier package to the nearest cent.

Once george got to know adam, they found that they really liked each other. this is an example of what factor in friendship