Given the graph of f, find any values of x at which f ' is not defined.
A. x = -2, 2
B. x = -2, 0, 2
C. x = 0
D. Defined for all values of x
Answer: B
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Provide an appropriate response.Solve the following system of equations using the addition method: 2x + 3y = -1 4x - 9y = -17
Fill in the blank(s) with the appropriate word(s).
Fill in the blank with one of the words or phrases listed below.
The 
of a list of numbers is their sum divided by the number of numbers.
A. place value B. perimeter C. average D. area
Evaluate the expression for the given value of the variable.
for a = 7
A. - 
B. - 
C. 
D. 
Solve the problem.The Family Arts Center charges $22 for adults, $13 for senior citizens, and $8 for children under 12 for their live performances on Sunday afternoon. This past Sunday, the paid revenue was 
for 806 tickets sold. There were 50 more children than adults. How many children attended?
A. 428 children B. 257 children C. 297 children D. 242 children