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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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Elliot has a landscape maintenance business. His monthly expenses are . If he charges per job, how many jobs must he do to earn a profit of at least a month?
The perimeter of a rectangle of 150 feet. The length of the rectangle is twice the width. Find the length and width of the rectangle.
In 10 years, a bank account that paid 5.25% simple interest earned $18,375 interest. What was the principal of the account?
During her shift at the museum ticket booth, Leah sold 115 tickets for a total of \(1163. Adult tickets cost \)12 and student tickets cost $5. How many adult tickets and how many student tickets did Leah sell?
In the following exercises, use the Pythagorean theorem to find the length of the leg. Round to the nearest tenth if necessary.
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