Ratio and Proportion (G8)
Q: The exchange rate between the American dollar and the Zambian Kwacha was $1 = K9.96 on a particular day. How many dollars could be exchanged for K19 920.00?
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Expand: 12 - 6x - 20 + 12x = (12 - 20) + (-6x + 12x) = -8 + 6x.
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