While on vacation in Hillsboro, Diane went out for a dinner that cost $20. If sales tax in Hillsboro is 5% and Diane left a 20% tip on $20, what was the total cost of her meal?

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

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?