What number is equivalent to the fraction 18 over 5

How to Write 18/5 as a Decimal? fraction to decimal calculator to find what's an equivalent decimal for the fractional number 18/5. the answer will be 3.6 in decimal form

It’s a little surprising that this question didn’t come up earlier.  Unfortunately, there’s no intuitive way to understand why “the energy of the rest mass of an object is equal to the rest mass times the speed of light squared” (E=MC2).  A complete derivation/proof includes a fair chunk of math (in the second half of this post), a decent understanding of relativity, and (most important) experimental verification.