Solve the problem.The profit that the vendor makes per day by selling x pretzels is given by the function 
Find the number of pretzels that must be sold to maximize profit.
A. 700 pretzels
B. 1.4 pretzels
C. 350 pretzels
D. 390 pretzels
Answer: C
Mathematics
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Solve the problem.A long-distance runner runs 2 miles south and then 5 miles east. How far is the runner from the starting point? Round your answer to thousandths. 
East --5 mi-->
A. 5.385 mi B. 3.742 mi C. 6.385 mi D. 7.000 mi
Mathematics
Multiply.10 × 86.651
A. 8615.1 B. 866.51 C. 886.51 D. 8665.1
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
+ 
A. 
B. 1
C. 
D. 
Mathematics
Each matrix is nonsingular. Find the inverse of the matrix. Be sure to check your answer. 
A. 
B. 
C. 
D. 
Mathematics