The cable installer charges 42.50 per hour plus a 60.00 service charge. your father's firm hires him to took up his company internet service

Is a positive integer raised to a negative power always positive

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

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?