The correct answer is 120
Answer: Robert and Chris can skate 10 miles in 45 minutes.
Step-by-step explanation:
Let's start by finding the unit rate.

Robert and Chris can skate
of a mile in 1 minute. Now we can multiply both by 45 to see how far the can go in 45 minutes.

45x1=45
The can skate 10 miles in 45 minutes.
Answer:
Step-by-step explanation:
-13/-12 = 1.0833......
The number is non terminating and repeating. So, it is rational number