Amelia took a total of 18 quizzes over the course of 2 weeks. After attending 5 weeks of school this quarter, how many quizzes will Amelia have taken a total? Solve using unit rates

Mallory has been offers two different jobs. she can baby sit for 6 hours a week and get $8.50 an hour. or she can work at the library for 14 hours a week and make $5.50 an hour. which job will allow her to save the most money after 6weeks?