The answer is B :)
Hope this helped :)
Answer:
26km
Step-by-step explanation:
d=speed × time
d=60×2.33
d= 140km
So we have the system of equations:

equation (1)

equation (2)
To use substitution, we are going to solve for one variable in one of our equations, and then we are going to replace that value in the other equation:
Solving for

in equation (2):



equation (3)
Replacing equation (3) in equation (1):






equation (4)
Replacing equation (4) in equation (3):



We can conclude that the solution of our system of equations is <span>
(7/5, 21/10)</span>
If you were to find the constant rate, you would have to take 4.5 and divide it into 234 to get the answer
You would get 52 as the constant speed