Show that 3412 2565 7246 5579 is an invalid American Express credit card number.

there is to many digits, an American Express card has only 15 digits while this card has 16.

Step-by-step explanation:

Each brand starts with a specific number:

Each brand has a specific number of digits in the card number:

The security code number (CVV or CVV2) for each card types are:

answer: ♡♡♡♡♡♡♡♡♡♡

step-by-step explanation:

step-by-step explanation: the answer is 27. first multiply .32 by 25 which equals 8. then add 8 to 25 which gives you 33. then you subtract that from 6 since she gave 6 to her brother.

,, add !