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.
decrease = 9%
percent decrease = 
× 100%
decrease = $98 - $89 = $9
percent decrease = 
× 100% = 9% (to nearest whole percent )
It is the first one I believe
Answer:
x = -3
Step-by-step explanation:
2x-x=-5+2
x = -3
it will be twelve and thirty eight hundredths
