Answer:
$3.60.
Step-by-step explanation:
If you want to tip 15%, then the total tip amount would be $2.40 plus half of that again ($1.20), which is $3.60.
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:
x + 5
Step-by-step explanation:
Therefore, the answer is x + 5.
Have a lovely rest of your day/night, and good luck with your assignments! ♡
Answer:
I don't get the "number of 40" part, but here's my best shot!
3(40x)-5
Step-by-step explanation:
Answer:
1) 18
2) Tuesday, Thursday, Saturday
3) Weeks 2 and 4