Answer:
1. plot the point (6,5) and label it Mr. Snuffles
2. 26 treats were eaten in total (21 not counting Mr.Snuffles)
Step-by-step explanation for plotting the point:
On the bottom line (miles walked) go to the number six, then go up five until it is on the five line for the side line (number of treats) plot the point here and then label the point Mr.Snuffles.