The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle

In stepmber, daniel and justin opened a business. during their first three months of business, their average monthly profit was $51. if during their first month, they lost $29, and during their second month, they gained $115, what was their profit or loss for their third plzzz i will give you 299 points