The number of permutations of the 25 letters taken 2 at a time (with repetitions) is:

The number of permutations of the 9 digits taken 4 at a time (with repetitions) is:

Each permutation of letters can be taken with each permutation of digits, therefore the total number of possible passwords is:
Answer:
40.8 lbs
Step-by-step explanation:
First find how many 100 pounds are in the 340 lbs shark.
340/100=3.4
The sharks are fed 12 lbs of fish for every 100 pounds of shark.
There are 3.4 hundred pounds in this shark.
3.4*12=40.8; 40.8 lbs
You know that there are 60 minutes in one hour, so you multiply 34 x 60.
Answer:
1.375
Step-by-step explanation: