Find the distance between the pair of points on the number line.12.4, -8.4

A. 2
B. 4
C. 20.8
D. 10.4


Answer: C

Mathematics

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A school board has determined that there should be 3 teachers for every 60 students. How many teachers are needed for an enrollment of 3,180 students? 

A. 134 teachers B. 170 teachers C. 159 teachers D. 175 teachers E. 216 teachers

Mathematics

Use divisions to solve the problem.Change 166 days to weeks and days.

A. 16 weeks and 6 days B. 24 weeks and 6 days C. 23 weeks and 5 days D. 23 weeks and 7 days

Mathematics

Evaluate the combination.

A. 9
B.
C. 40,320
D. 362,880

Mathematics

Perform the operations.5.396 × 10-6

A. -5,396,000 B. 0.000005396 C. 0.0000005396 D. 0.00005396

Mathematics