A company bought New Year's greeting cards to send to its valued customers. Forty-five of the cards they sent cost $2.40 each. Thirty-six of the cards cost $2.90 each. The remaining 28 cards cost $1.80 each. What was the total amount spent on these cards please help

How much money does ron have left each month after his fixed expenses? ron graduated from college five years ago. he recently bought a house, but shares it with a housemate who pays him $800 a month for rent and utilities. ron is putting a budget worksheet together so he will have a better idea of where his money is going and where he can save. enlarge