Which equation can be solved by using this system of equations? y = 3x^3 - 7x^2 + 5 y = 7x^4 + 2x a.) 3x^3 - 7x^2 +5 = 0 b.) 3x^3 - 7x^2 + 5 = 7x^4 +2x c.) 7x^4 +2x = 0 d.) 7x^4 +3x^3 -7x^2 +2x + 5 = 0

It takes a total of 6 hours to fill up an inground backyard pool using a standard house. a function can represent this situation to represent the amount of water in the pool until it is full a function of time the hose is running. determine the domain for the function

Kathy spent 5/8 of her money on books and another 1/6 of her money on stationeries.what fraction of kathy’s money was left?

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