text: Chapter 4 - An Introduction to Functions - 4-5 Writing a Function Rule - Mixed Review - Page 267: 55
  
  $\frac{5}{3}$
  
  Work Step by Step
  
  We could simplify the equation by first get the fraction result $\frac{25}{9}$x$\frac{3}{5}$equals to $\frac{75}{45}$, then we can find the common facor between 75 and 45 is 15 , 75=15x5 and 45=15x3 . By simplfing common factor , we get $\frac{5}{3}$ for the final answer
  
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