My brain is a rasin so yeah, help a g a i n

Answer:
Combined time: 55.316 seconds
The difference in times: 0.856 seconds
Tips:
It is addition and subtraction. A basic calculator should help with any other questions such as this one!
Answer:
Combined Time=55.316
Differences of times=0.856 seconds
Step-by-step explanation
It would be greatly appreciated if you gave me brainiest