Hi,
Let assume a the width and b the length of the rectangular area.
Answer: A
Step-by-step explanation:
Answer:
um
Step-by-step explanation:
176 10cent per 1 message
Answer:
I think the answer is all of the above
In the first 10 -> 10 - 9 = 1 (contain a 3).
In the first 100 -> 100 - 9 * 9 = 19 (contain a 3).
In the first 10^n ->
10^n - 9^n (contain a 3).
<u>The answer is 3.439 numbers contain a 3 in the first 10.000</u>