A school is organizing a weekend trip to a nature preserve. For each student, there is a $60 charge, which covers food and lodgi
ng. There is also a $40 charge per student for the bus. The school must also pay a $30 cleaning fee for the bus. If the total cost of the weekend is $4030, how many students will be going on the trip? A. 31 B. 40 C. 41 D. 66
As the exterior angles always add up to 360, you can find the number of sides by dividing 360 by the measure of your exterior angle, 30. This gives you 360/30=12, meaning your polygon has 12 sides.
