Solve.
+ 7 = 3
A. -71
B. - 
C. - 16
D. 
Answer: B
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Provide an appropriate response.The range and standard deviation of the data set below are 35 and 12.47 respectively. 5, 24, 25, 26, 40If the 26 is replaced with 39, how will this affect the range? How will this affect the standard deviation. Use your answers to explain why the standard deviation is preferable to the range as a measure of variation.
What will be an ideal response?
Perform the indicated operation and write the answer in the form 
where a and b are real numbers.9i + (-3 - i)
A. -3 + 10i B. 3 - 8i C. -3 + 8i D. 3 - 10i
Simplify the expression.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Solve the problem.x represents the number of textbooks purchased at $25 per book, and y represents the total amount of money spent on textbooks. What is an equation of the form y = ax for this situation?
A. y = 50x B. y = 13x C. y = 25x D. y = 75x