Brian has 250 coins in his piggy bank. some of the coins are quarters and the rest are nickels. if the total value of the coins is $28.70, find the number of nickels in the piggy bank.

You need to solve a system of equations. you decide to use the elimination method. which of these is not allowed? 3x - 2y = 7 3x + 4y = 17 equation 1 equation 2

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)