Answer:
River C is: 2,965 miles long.
River D is: 2,565 miles long.
Step-by-step explanation:

Have a great day! ^^
Answer:
I don't know if this helps, just a picture not a link
Answer:
Late response, sorry. It is 750 meters.
Step-by-step explanation:
An easy method to save time is to just divide the distance by time to find what amount per second it can run. In this case, you have 120 and 4 to work with. Divide and you'll get 30 meters per second. Then, multiply 25(your seconds) by 30(the meters it runs per second) to get your answer.