Provide an appropriate response.If Q = 90e0.5t what happens to Q and to Q' as t increases?
A. Q increases and Q' increases.
B. Q decreases and Q' decreases.
C. Q decreases and Q' increases.
D. Q increases and Q' decreases.
Answer: A
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Decide if an Euler circuit exists for the graph. 
A. Yes B. No
Solve the problem.The sales tax rate in one state is 5.75%. How much tax will be charged on a purchase of 6 chairs at $63 apiece? Round your answer to the nearest cent.
A. $217.35 B. $21.74 C. $3.62 D. $66.62
Solve the problem.Tom Quig traveled 290 miles east of St. Louis. For most of the trip he averaged 70 mph, but for one period of time he was slowed to 20 mph due to a major accident. If the total time of travel was 7 hours, how many miles did he drive at the reduced speed?
A. 80 mi B. 100 mi C. 75 mi D. 90 mi
Solve the inequality. Express your answer using interval notation. Graph the solution set.|x| < 2
A. (-?, 2]
B. (-?, -2) ? (2, ?)
C. [-2, 2]
D. (-2, 2)