A maintenance company charges an office owner $1,800 to clean 5 of his machines. How many should he charge to fix 3 machines?

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?

How far could you drive on 50 gallons of gas

Apackage of orgainc strwberries costs $1.50 while there in season and $2.25 when not in season what the percent increase