1. If you make four trips home during the school year and plane tickets cost $300 per trip, how much should you budget on a monthly basis to cover this variable cost? Assume that the school year is 9...

1. If you make four trips home during the school year and plane tickets cost $300 per trip, how much should you budget on a monthly basis to cover this variable cost? Assume that the school year is 9 months long.

2. You estimate that next year you will need to buy new tires for your car at a cost of $500. This is in addition to typical maintenance costs, which have been $600 in previous years. If you get paid every other week, how much should you budget out of each paycheck to cover the estimated yearly variable expense of car repairs?