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1. If 2x=7 and 3y=2, then what is the value of 9xy?

  • A. 21
  • B. 21
  • C. 21
  • D. 21

Answer: Option A

Explanation:

(2x)(3y) = 7×2

= > 6xy = 14

Multiply both sides by 3/2

∴9xy = 21

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