Homework 13 solutions for honors classes:
Problems 1-4
Note: on #3 the number of texts for plan B, I said that there are $23 left after spending $12 on talking. This is wrong. There should only be $13 dollars left. So when you calculate you'll get 260 texts. (Thanks brett for pointing out the error)
Problems 5-6 (only the first half of #6)
Problems 6-8
