Solve the problem.An auditorium has 15 rows with 10 seats in the first row, 12 in the second row, 14 in the third row, and so forth. How many seats are in the auditorium?
A. 360
B. 390
C. 255
D. 300
Answer: A
Mathematics
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Express the number in scientific notation.29,000,000,000
A. 2.9 × 10-9 B. 2.9 × 1010 C. 2.9 × 10-10 D. 2.9 × 109
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Simplify. Assume that all variables represent positive numbers.
A. 
B. 
C. 
D. 
Mathematics
Find the greatest common divisor of the numbers.26 and 39
A. 78 B. 39 C. 13 D. 26
Mathematics
Round the whole number to the given place value.58,308, hundreds
A. 58,400 B. 58,200 C. 58,300 D. 58,310
Mathematics