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E=mc² is an equation representing mass-energy equivalence. This means that anything having mass has an equivalent amount of energy.

The variable E represents energy

The variable m represents mass

The variable c represents the speed of light constant.

fractions will go in as x/y

Ex. 3/2, 4/27, 95758/23

That's how you put fractions into the calculator.

And please, don't swear.

x² * x² = x⁴

Thank you very much!

(-4)^2 = 16

7*16= 112

just type pi in like this: Pi

There's also a button for it.

Atomic mass is molar (or 1 mole of an element is this much mass)

CaCO₃ is the element

Think of it as an addition problem: 

Ca + C + O + O + O

Substitute numbers

40+12+16+16+16

Simplify

52+48

Add 52 and 48

100

So, the molar weight (molar mass) of the compound CaCO₃ is 100 g/mol (grams per mole)

First, let's find 500 * 1.08

500 * 1.08 = 540

Now, divide 540 by 16

540/16 = 33.75

The answer to 500(1.08)/16 is 33.75

2v minus -4=18

negative negative is positive

2v+4=18

subtract 4 from both sides

2v=14

divide by 2 on both sides

v=7

Happy Pi Day CPhill! Get yourself some delicious pie! (I love key lime :D)