The statement is false. It is incorrect that the number pi is an irrational number because of the phrase in the sentence 'repeating pattern'. Irrational numbers like Pi cannot be expressed as fraction or ratio of integers. Plus, they do not end (or like you said, they go on forever) HOWEVER they do not follow or have a repeating pattern.
500 thousandths is equal to five tenths. Thus, we have a five in the tenths place and an eight in the hundredths place, so we have .58 as our answer.
There are 6 sides on a die, so there are 6 numbers: 1, 2, 3 ,4 ,5 and 6.
The probability of rolling a 6 would be 1 out of 6 numbers which is written as 1/6.
You plug 3 into B so 2(3) + 9 = 15
After you have multiplied but you have all these numbers, look to see how many decimal places the numbers you have multiplied.
Lets say you multiply:
23.45
x 2.1
= 49.245
Because your first number had 2 decimal places and your second number had 1 decimal place you add that and that is how many decimal places your product has. In this case there is three.