Grace has x pennies and y nickels. She has at least 20 coins worth a maximum of $0.40 combined. Solve this system of inequalities graphically and determine one
possible solution.
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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

Solve for the equation x. 2x + 22 = 4(x + 3)

Solve the system of equations. x=-2y+1 and x+2y=9. show work