The answer A. 7 + 4 because it’s equal to 11 and 4-(-7) is 11
Try this solution; note, the basic formula is Distance=Speed*Time.
All the details are in the attachment.
Answer:
(4/15)
Step-by-step explanation:


1- Multiply the numerators:

2- Multiply the denominators:

3- Thus:

Hope this helps ;)