Yes, 13 is the remainder.
See dat pic for full solution.
Answer:

Step-by-step explanation:
I understand that you want to solve this equation

<=>

<=>

<=>
x = 2 or x = -2
hope this helps
if your question is 
then this is 
Answer:
Step-by-step explanation:
The average speed of the flights mph was 700 because if you divide 2100/3 you get 700
No is not the same
2/1 = 2
1/4 = .25
Answer:
9.99493
Step-by-step explanation:
You divide the circumference by pi to get the diameter. Then if you want the radius, you just simply cut the diameter in half!