Aregular polygon is drawn in a circle so that each vertex is on the circle and is connected to the center by a radius. each of
the central angles has a measure of 40°. how many sides does the polygon have?
8
9
10
12

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

Bring the fraction a/a-4 to a denominator of 16-a^2