Find the measures of the angles formed by (a) two consecutive radii and (b) a radius and a side of a equilateral triangle

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

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?

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1