Step-by-step explanation: We see that it took James 10 minutes to go 0.5 miles, so to get how many miles an hour James is traveling, we need to get the miles to 1. To do this, multiply by 2, and this will give you that it took James 20 minutes to go 1 mile. This is option C.
No because a pentagon has more sides than a square does. to find perimeter you have to add up all the sides. for the square it would be 9+9+9+9 which is 36
for the pentagon it would be 9+9+9+9+9 which is 42.