Katie bought a bike for $150.00. she had a coupon for 15% off and the sales tax rate is 9%. What is the total cost after the tax
1 answer:
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First, we are going to find the inverse function of 
by replacing with 
, and then, interchanging 
and and solving for :
Next we are going to evaluate our inverse function at
:
We can conclude that the inverse function of
when is 
Next we are going to evaluate our inverse function at
We can conclude that the inverse function of