Mathematics, 06.01.2021 19:50 1945

14. Mark weighs 74 pounds. Together, he and his sister weigh six pounds more than three tim the weight of his sister What is the weight, w. of Mark's sister?

14. Mark weighs 74 pounds. Together, he and his sister weigh six pounds more than three tim the wei

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14. Mark weighs 74 pounds. Together, he and his sister weigh six pounds more than three tim the weig...