Answer:
hello
Explanation:
for average speed the total distance is important so.
and you must convert min to hour 15 min is 1/4 or 0.25 hour

for average velocity the straight line distance is important so

hope you understand
Each parent contribute 50 percent. A person have 46 genes and 23 comes from the mother and 23 comes from the father
A. Should be the correct answer:) hope this helped! :)
D is the answers Gases from a dead star gather and contract.