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:
A) +5000
Step-by-step explanation:
I'm not sure of my answer but
hope that help
Answer:
8
Step-by-step explanation:
n * 12 = 96
96/12 = 8
==> n = 8
Answer:
20
Step-by-step explanation:
if you divide 50 from 2.5 you get 20
then take 20x2.5 and you get 50.