Question

By looking closely at how stars and galaxies are moving away from other,what have astronomers been able to calculate

A.The age of the universe only

B.The rate at Which the universe is expanding only

C.The age of the universe and the rate at which the universe is expanding

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Answer 1

it would have to be c. the age of the universe and the rate at which the universe is expanding cause it can't just be one of the others only