Provide an appropriate response.Consider the statement Sn: 12 + 22 + 32 + ... + n2 = 
.Write the statement Sk + 1.
A. 12 + 22 + 32 + ... + k2 = 
B. 12 + 22 + 32 + ... + (k + 1)2 = 
C. 12 + 22 + 32 + ... + (k + 1)2 = 
D. 12 + 22 + 32 + ... + (k + 1)2 = 
Answer: C
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Provide an appropriate response.You are asked to change 
to a mixed number. What should be your first step?
A. Multiply 25 and 24. B. Divide 24 by 25. C. Add 25 and 24. D. Divide 25 by 24.
Simplify the expression. Assume that all variables are positive when they appear.
A. 4
B. 125
C. 
D. 
Find the indicated probability.The table below shows the soft drink preferences of people in three age groups.
If one of the 255 subjects is randomly selected, find the probability that the person is over 40 and drinks cola.
A. 
B. 
C. 
D. 
Find the unknown number in the proportion. Write your answer as a whole number or a mixed number if possible.
= 
A. x = 
B. x = 
C. x = 
D. x = 