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. -55 pretzels
C. 350 pretzels
D. 0.7 pretzels
Answer: C
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Graph on the number line, and express in interval notation.The set of all real numbers between -2 and 2 excluding -2 and including 2.
A. (-2, 2]
B. (-2, 2)
C. [-2, 2]
D. [-2, 2)
Solve the problem.The information in the chart gives the salary of a person for the stated years. Model the data with a linear function using the points 
and 
A. y = -1242x + 23,500 B. y = 1000x C. y = 28.2x + 23,500 D. y = 1000x + 23,500
Solve the problem.Racing cyclists use the algebraic expression 
to determine the maximum speed, in miles per hour, to turn a corner of radius x, in feet, without tipping over. Find the maximum speed at which a cyclist should travel around a corner of radius 11 feet without tipping over. Write the answer in simplified radical form.
A. 12 + 
miles per hour
B. 
miles per hour
C. 12
miles per hour
D. 4
miles per hour
Evaluate the expression for the given value of x.
?
A. 
B. 
C. 
D. 48
E. -48