A letter used to represent a number is a variable of sometimes a constant.
a variable
It is a subscript representing atoms in a molecule. In this example Hydrogen is diatomic, which means it naturally forms in pairs. So it is 2 atoms of hydrogen.
An exponent. For example: 53 5 is the base number and the little 3 above the five is an exponent. Exponents represent the number of times the base value is multiplied by itself. So the above example shows that 5 is multiplied by itself 3 times: 5 x 5 x 5 = 53 = 125.
Variable
It is: 99
Fund Code
12
You represent a repeating number by putting a dash on top of the number. For example 56.1066666 you represent it by putting a dash on top of the 6
36
There are a number of things that a fourth leaf could represent. In a plant this could represent luck for example.
It can, for example, in base 7 arithmetic.
it can represent any number it can represent any number it can represent any number it can represent any number it can represent any number
6134
Atomic number= number of protons. Hydrogen atomic number=1
The answer is 39. 3+9=12, 3x9=27. 12+27=39.
put a line on top of the number for example a line on top of second number its easy