Answer:
The answer of 631 divided by 4 is 157. 75
There's 9 choices for the first digit and 4 choices for the last digit. The number of choices for the 2nd and 3rd digits is 90 if 2 numbers are different. or 100 if duplicates are allowed.
If duplicates are allowed the answer is 9 * 100 * 4 = 3600 possible numbers.
Answer:
She must read more than 5 more hours.
Step-by-step explanation:
Answer: 0.6%
Step-by-step explanation: