3) Use your calculator to evaluate the following expression if x=9.69, and y= -8.02
x-5y
Round your answer to the nearest tenth

4) A bus leaves a station at 1P.M., traveling west at an average rate of 44 mi/h. At 2P.M. on the same day a second bus leaves the same station, traveling east at a rate of 48mi/h. Approximately at what time will the two buses be 274 mi apart?

5) An 18-ft board is cut into two pieces, one of which is 4 ft longer than the other. How long is each piece? Show your work.

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