Answer:
5040 different combinations
Step-by-step explanation:
0-9 = 10 numbers
1st digit can be 1 0f 10
2nd digit can be 1 of 9
3rd digit can be 1 of 8
4th digit can be 1 of 7
10×9×8×7=5040
Answer: what i would do is add a zero
Step-by-step explanation:
hope that help u have a wonderful day
Answer:
what do you need here there has to be something to do here your just giving me a variable
Step-by-step explanation: