Answer:
000000000000000000000000000000
Well I graphed it for you and it seems that D fits well compared to other options.
Hope this helps.
It is true. ac=bd when breakind down is a=b and c=d so ac=bd is true
Answer:

Step-by-step explanation:
Let us first find the number of possible credit card numbers that can be formed with the numbers 0 - 9.
We want to form a 16 digit number out of 10 digits, so, we have:

There are
numbers that can be formed.
There are only 100 million valid numbers (
). Let the number of valid numbers be n.
Therefore, the probability of picking a number that is valid is:
P(valid) = n / N
