Solve the problem.In his chemistry lab, Harrison measured the mass of a sample of calcium carbonate six different times. The mass measurements he observed were: 2.016 g, 2.009 g, 2.017 g, 2.011 g, 2.012 g, and 2.011 g. Find the mean of these measurements.
A. 2.011 g
B. 2.015 g
C. 2.013 g
D. 2.01 g
Answer: C
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What value of x gives the minimum value of
?
Consider only positive x-values.
A. 
B. 
C. 
D. There is no solution.
Provide an appropriate response. Identify the symbolic statement that could not be equivalent to the following verbal statement: If a 12-foot board is cut into three equivalent pieces, what would be the length of each piece?
A.
x + 3 = 12
B.
x + x + x = 12
C.
3x = 12
D. x =
Change the exponential expression to an equivalent expression involving a logarithm.4-2 = 
A. log-2
= 4
B. log4-2 = 
C. log1/164 = -2
D. log4
= -2
Solve the problem.A convenience store employee is counting $10 and $20 bills. If there are seven times as many 
as 
and the total amount is $1800, find the number of each type of bill.
A. 140 $20 bills; 20 $10 bills B. 20 $20 bills; 7 $10 bills C. 20 $20 bills; 140 $10 bills D. 140 $20 bills; 7 $10 bills