5. Shelly spent $15.73 at the mall. Her sister Kelly spent $7.92. How much more did Shelly spend than Kelly? Answer using number
1 answer:
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We have .
To find inverse function we substitute x with
and vice-versa to get
Now solve for . Note that I will use
instead.
So we find that .
Hope this helps.
Step 1. <span>Distribute
</span>
<span>
Step 2. Simplify </span>
to 
Step 3. Simplify
to 
Done! :)
</span>
<span>
Step 2. Simplify </span>
Step 3. Simplify
Done! :)