Mathematics, 29.07.2019 10:20 wrharris95791
David has two younger sisters, jane and sally. jane is 2 years older than sally and david is 4 times older than jane. sally is z years old. part a write two equivalent expressions that represent david’s age in terms of sally’s age, z, and explain how the two expressions relate to one another. part b which expression is more useful? why?
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David has two younger sisters, jane and sally. jane is 2 years older than sally and david is 4 times...
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