i am a number. i am the product of the number of digits in a half billion and the number of years in a decade. What number am i ?

Half of 1 billion = 500,000,000 = 9 digits

Decade = 10 years

9 * 10 = ?

Thank you

You're welcome.

90

To find the answer, we need to calculate the number of digits in half a billion and then multiply it by the number of years in a decade.

Let's break it down step by step:

First, let's find the number of digits in half a billion (500,000,000):

1. Initially, we need to count the number of zeros in half a billion. Since we know that each zero represents a place value of ten, we can divide the number by 10 until we reach a value less than 10. Count how many times you divide by 10.

500,000,000 ÷ 10 = 50,000,000 (1 zero)
50,000,000 ÷ 10 = 5,000,000 (2 zeros)
5,000,000 ÷ 10 = 500,000 (3 zeros)
500,000 ÷ 10 = 50,000 (4 zeros)
50,000 ÷ 10 = 5,000 (5 zeros)
5,000 ÷ 10 = 500 (6 zeros)
500 ÷ 10 = 50 (7 zeros)
50 ÷ 10 = 5 (8 zeros)

So, half a billion has 8 digits (including all the zeros).

Now, let's find the number of years in a decade:

A decade refers to a period of ten years. So, the number of years in a decade is 10.

Finally, we multiply the number of digits in half a billion (8) by the number of years in a decade (10):

8 (number of digits) × 10 (number of years) = 80

Therefore, you are the number 80.