For the first digit you have 10 options (0..9).
For each next digit you can't choose the same digit, so you have 9 options.
So number of combinations is 10*9*9*9*9 = <span>65610</span>
Answer:
7 to 2 decimal places is:
7 = 2.64
The answer is b. The equivalent of -7/8 is 7/-8.
A is your answer hope this helps