Answer:
4
Step-by-step explanation:
So we know that RT is 36.
Note that RT is the combined length of RS and ST. Therefore:

Substitute. RT is 36, RS is 6x+1 and ST is x+7:

Combine like terms and add:

Subtract 8 from both sides:

Divide by 7:

So, our answer is 4 :)
I think it’s 6 miles I’m not sure actually
Answer:
b
Step-by-step explanation:
Because without x you can't have a number. 2x-2x cancels out so you wouldn't have an answer. Hope this helps!