If they work together, Tarun, Sarah, and John can clean the house in 1 3/5 hours. Tarun and Sarah each work at the same rate, but John takes twice as long as either of the others. How much time would it take to clean the house with just Tarun and Sarah working together?

What is the fewest number of full weeks briyana would have to work to have enough money? 8 weeks9 weeks 10 weeks11 weeks

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

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?