including sarah a total of 11 people took a trip. she was able to purchase coach tickets for $160 and first class tickets for $1200. she used her total budget for airfare for the trip, which was $8000. how many first class tickets did she buy? how many coach tickets did she buy?

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

What is the distance between the points (2, 5) and (5,9)?

Solve the equation 1. x-3/4=2 4/52. -1/3x-11= -20 3. -12+5/7x= -19