Answer:
If a penny represents one years, 4.54 billion pennies are needed to represent the age of the Earth.
Explanation:
The equivalent number of pennies is the age of the Earth divided by the age of a penny. That is:


If a penny represents one years, 4.54 billion pennies are needed to represent the age of the Earth.
I think the last one but don’t quote me on that
The correct answer is D.
Magnets only attract to the opposite poles.
North and South poles attract.
North and North poles do not.
Hope this helps.