Solve the problem.A merchant has coffee worth $30 a pound that she wishes to mix with 70 pounds of coffee worth 
a pound to get a mixture that can be sold for 
a pound. How many pounds of the 
coffee should be used?
A. 280 pounds
B. 210 pounds
C. 140 pounds
D. 105 pounds
Answer: B
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Determine which of the fundamental laws of algebra is demonstrated.5 + 1 = 1 + 5
A. Commutative B. Distributive C. Associative
Solve the inequality. Give the solution set in both interval and graph forms.
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A. 
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B.
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C.
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D.
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Provide an appropriate response.In a raffle 1000 tickets are being sold at $1.00 each. The first prize is $100, and there are 3 second prizes fo $50 each. By how much does the price of a ticket exceed its expected value?
A. $1.00 B. $0.75 C. $1.75 D. $50
Solve the problem.John has received scores of 85, 88, 87, and 80 on her algebra tests. What is the minimum score he must receive on the fifth test to have an overall test score average of at least 82? (Hint: The average of a list of numbers is their sum divided by the number of numbers in the list.)
A. 69 B. 70 C. 71 D. 68