Mathematics, 27.01.2021 18:00, aliviadushane

Roger had $1200. He bought a phone with 0.4 of the money and a helmet with 0.5 of the remaining money. What is the amount of money Roger had left?

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Roger had $1200. He bought a phone with 0.4 of the money and a helmet with 0.5 of the remaining mone...