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.
The fraction 8/21 cannot be simplified because the numerator and denominator don't have a common factor except 1.
Answer:
do you mean in simplest form
if so then it is 2:3
if not then 6
Step-by-step explanation:
N+n+2+n+4=54
3n+6=54
3n=48
n=16
16, 18, 20
I think you need to retype this one. The formatting makes this question difficult to understand.
