Write a y=kx equations for the problems below: 1. Sammy ate x pieces of pizza and Joey ate 1/4 more than that.

2. Ms. Pekar spent x hours grading papers. Mrs. Youngblood spent 2/5 hours less than that grading papers.

3. Mrs. Cherry went shopping at x stores at the mall, but Mrs. Smith went shopping at that many stores and then that many more stores.

4. Katelyn bought x pounds of candy and Sophia bought 2/3 less than that