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Joseph started his math homework. He finished 23 problems by himself and had help on 13 problems from Sal. There are only 9 math problems left

Respuesta :

MrGumby

Answer:

This means that there were 45 total problems.

Step-by-step explanation:

To find the total number of problems, add all of the different categories together.

Total = Himself + With Sal + Left

Total = 23 + 13 + 9

Total = 45

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