ADD the following 1. 12a²b² , -7a²b² and 9a²b²
2. 4x²y , -3xy² , -5xy² , 5x²y

Subtract the following

1. -10abc from 10abc
2. -5y from y²

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Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer