Solve.I am thinking of a whole number. My number, rounded to the nearest hundred, is 800. When the number is rounded to the nearest ten, it is 840. What numbers am I thinking of?
A. 850, 851, 852, 853, 854
B. 835, 836, 837, 838, 839
C. 840, 841, 842, 843, 844
D. 845, 846, 847, 848, 849
Answer: C
Mathematics
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= 
A. 11.424 B. 0.1 C. 9.5 D. 31.6
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Write the percent problem as an equation and solve.21 is 6% of what number?
A. 126 B. 3500 C. 350 D. 35
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+ 
= 4
A. 3, 
B. No solution
C. -3
D. 3
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