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

Answer:
the box will be 4.8 kilograms
Step-by-step explanation:
hope this helps
I thinks 5 because -2(x) = -2x and -2(5)=-10
So -2x=-10
-10/-2=5
X=5
Answer:
see explanation
Step-by-step explanation:
The lower quartile
is positioned at the left side of the box, that is
= - 4
The upper quartile
is positioned at the right side of the box
= 6