Rafael is training for a triathlon which includes swimming biking and running the graph shows the total hours he spent swimming over the first 4 weeks of his training

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5

the answer is:

mean: 6

mad: 2.14

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)

52 \43 i don't know this i tried