Solve the problem.A merchant has coffee worth $30 a pound that she wishes to mix with 20 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. 15 pounds
B. 5 pounds
C. 30 pounds
D. 10 pounds
Answer: D
Mathematics
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Solve the problem.One half of a number is 3 more than one-sixth the same number. What is the number?
A. 8 B. 18 C. 9 D. 12
Mathematics
Provide an appropriate response.
Shade the portion of the graph represented by the system of inequalities:y > 
x - 3
y ? -2xi + 1
A. 
B. 
C. 
D. 
Mathematics
Solve the equation by making an appropriate substitution.x2/3 - 3x1/3 + 2 = 0
A. {1, 2} B. {-2, -1} C. {1, 8} D. {-8, -1}
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 1
B. 
C. 
D. 16
Mathematics