A train traveled 240 km in 2.5 hours and then slowed down traveling the final 180 km in 2 hours. What was the train's average speed in km/h?

A. 96 km/h

B. 90 km/h

C. 84.7 km/h

D. 93.3 km/h

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the expression - 50x + 100 represents the balance, in dollars, of a bank account after x months. what is the rate if change, in dollars, of the bank account balance?

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Dr. Casey has a cylindrical beaker he fills with about 113 cubic inches of hydrochloric acid. The hydrochloric avid has a height of 4 inches in the beaker. To the nearest inch, what is the diameter of the hydrochloric acid in Casey's container?

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The admission cost for a student to the Frontier Culture Museum is $6.00. If 101 students are attending, what will the total cost be for tickets?

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