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Chapter 2: Q. 91 (page 128)
The difference of twice a number and seven is 17. Find the number.
The number is 12.
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Classify the below equation as a conditional equation, an identity, or a contradiction, and then state the solution.
The sum of four times a number and two is fourteen. Find the number.
In the following exercises, find (a) the amount of the mark-up and (b) the list price.
Flora paid her supplier $0.74 a stem for roses to sell at her flower shop. She added an 85% mark-up.
What price did she charge her
customers for the roses?
Converting temperature
Yon was visiting the United States and he saw that the temperature in Seattle one day was Fahrenheit. Solve for C in the formula to find the Celsius temperature.
Chi is planning to put a diagonal path of paving stones through her flower garden as shown. The flower garden is a square with side 10 feet. What will the length of the path be? 
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