Test yourself
• if you know that the universe is estimated to be 14 billion years old. what is the age of
the universe in seconds ? (knowing that : the solar year = 365.25 days)

4.41504e+17

Step-by-step explanation:

We know that in one whole year is 31536000 seconds and the universe is 14 billion years old. So times it together and you get 4.41504e+17

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !