Andy took out a 5 year loan at 12% interest rate to pay for a trip to Spain. If he ended up paying $4937.50 in interest, how much was the trip?

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

Can someone me out here and the tell me the greatest common factor