Describe the situation with a linear inequality and then solve the inequality.Lauren earns $3 an hour selling encyclopedias door-to-door. She also earns $15 in commission per set of encyclopedias sold. To pay her rent this week, she must earn at least $129, and she only has time to work 8 hours. How many sets of encyclopedias must Lauren sell this week in order to make her rent?
A. She would have to sell at least 8 sets of encyclopedias.
B. She would have to sell at least 6 sets of encyclopedias.
C. She would have to sell at least 7 sets of encyclopedias.
D. She would have to sell at least 9 sets of encyclopedias.
Answer: C
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Solve each of the following systems of equations. If the system is inconsistent or dependent, say so.x + y = 6x - y = 4
A. (-5, 2) B. (4, 2) C. (5, 1) D. No solution
Solve.
= 
A. 4
B. 14
C. 
D. 3
The circle in the figure has a radius of r and center at C. The distance from A to B is x.
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If 
and 
, find x.
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Apply the rules regarding the use of significant digits when determining your answer.
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Fill in the blank(s) with the appropriate word(s).
A die is rolled twice. Write the indicated event in set notation.The sum of the rolls is either 11 or 9, and one roll is a 6.
A. {(6, 5), (6, 3)} B. {(6, 5), (6, 3), (5, 6), (3, 6)} C. {(6, 5), (5, 6)} D. {(5, 6), (3, 6)}