Fill in the blanks.82 = 
so 
= 8.
A. 8, 8
B. 64, 64
C. 64, 8
D. 8, 64
Answer: B
Mathematics
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Solve the problem.An express train and a local train leave a station at the same time (on separate tracks) and head for a town 50 miles away. The express travels twice as fast as the local and arrives 1 hour ahead of the local. Find the speed of each train.
A. Express: 100 mph; local: 50 mph B. Express: 25 mph; local: 12.5 mph C. Express: 50 mph; local: 25 mph D. Express: 60 mph; local: 30 mph
Mathematics
Express the number in standard notation.8.06 × 104
A. 806,000 B. 322.4 C. 8060 D. 80,600
Mathematics
Find the sum and simplify the answer.
+ 
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality.x2 - 4x - 5 ? 0
A. (-?, -1] B. [-1, 5] C. [5, ?) D. (-?, -1] or [5, ?)
Mathematics