Solve the problem.A picture costs $140. The sales tax is $5.60. What is the sales tax rate?
A. 4%
B. 0.4%
C. 5%
D. 6%
Answer: A
Mathematics
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Perform the indicated operation. Write the answer in simplest form.
÷ 
A. 
B. 
C. 
D. 
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Calculate the average rate of change of the given function over the interval 
.
?
?
A. -24 B. 3 C. -3 D. 168 E. -21
Mathematics
Find the slope of the graph of the function 
at 
.
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Solve the linear programming problem by the simplex method.
Mathematics