Mary drove for four hours on an interstate highway at a constant rate of 60 miles per hour. During the next hour, she drove on a state road at a slower rate of 40 miles per hour. How many miles did Mary travel on her trip?

280

Step-by-step explanation:

60 x 4 = 240 miles

40 x 1 = 40 miles

240 + 40 = 280 miles

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.

the anwser is d) 75°

step-by-step explanation: