From the definition of average velocity,
,
and the fact that constant acceleration means

we can solve for the time
:

I think the correct answer is going to be A
Answer:
15? I actually don't know
Answer:
A hypothesis is a conjecture, based on knowledge obtained while seeking answers to the question. The hypothesis might be very specific, or it might be broad. Scientists then test hypotheses by conducting experiments or studies.
Explanation:
mark me as the brainliest
have a great day