Simplify.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.A lake lies between A and C, and lines AB and DE run north-south. If AB = 8.0 mi, DE = 1.3 mi, and DC = 1.4 mi, how far is it from A to C? Round to the nearest tenth.
A. 7.2 mi B. 7.4 mi C. 9.0 mi D. 8.6 mi
Mathematics
Perform the indicated arithmetic.2
÷ 8
A. 
B. 
C. 
D. 
Mathematics
Write the number in standard form.8.43 × 104
A. 8430 B. 84,300 C. 843,000 D. 337.2
Mathematics
Solve the problem.A boat moves 9 kilometers upstream in the same amount of time it moves 19 kilometers downstream. If the rate of the current is 5 kilometers per hour, find the rate of the boat in still water.
A. 4
km/hr
B. 17
km/hr
C. 14 km/hr
D. 5 km/hr
Mathematics