Please help this is due soon

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

Can someone me with my math problem pls my teacher is on my back about this

Write 5 in the form of a/b using integers to show it as a rational number