Thomas has 19 playing cards. He gives 6 playing cards to his brother. How many playing cards does Thomas have now?

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

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?