X is how much it costs for one hour, so when you multiply it by 3 1/2, you get the amount of money charged for 3 and a half hours.
Answer:

Step-by-step explanation:
<u>Step 1: Subtract 15 from both sides</u>
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<u>Step 2: Factor</u>


Answer: 
You have to divide 140 /5=28
1/3 of 123 is 41
123 - 41 = 82
The sale price of the coat is $82
And that answers your question!