Answer the question.Which of the following quantities of interest would be most difficult to determine?
A. The percentage of second graders who read above grade level
B. The number of children living below the poverty line
C. The number of children not counted in the last census
D. The percentage of children who brush their teeth at least twice a day
Answer: C
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Find the tenth term of the geometric sequence with a = 5 and r = 2.
A. tenth term = 2,560 B. tenth term = 5,120 C. tenth term = 2,552 D. tenth term = 2,558
Subtract: 15.3 - 0.135
A. 15.165 B. 15.435 C. 14.05 D. 13.95
Solve the system by substitution. x + 2y = 14-2x + 3y = 21
A. (1, 6) B. (0, 7) C. (-7, 0) D. No solution
Solve the problem.234 chocolates are to be packed into boxes each of which will contain 10 chocolates. How many boxes of chocolates will there be? How many chocolates will be left over?
A. 22 boxes; 4 chocolates left over B. 22 boxes; 5 chocolates left over C. 23 boxes; 4 chocolates left over D. 23 boxes; no chocolates left over