Chelsey put $450 into an account with a simple interest rate of 2.5%. When she withdrew the money she had earned a total of $67.50 in interest. How long did she leave the money in the account?

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

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?

Solve for x and select the correct answer