Step-by-step explanation:
-9+15=6, -6+15=9
So,
6 < 9
120/12=x
120/12=10
Then answer to this problem is B
The answer is 5
5x5=25
25x5=125
Answer:

Step-by-step explanation:
Divide by the prime numbers in increasing order until you find all the prime factors.
The first few prime numbers are: 2, 3, 5, 7, 11, 13, 17
1764/2 = 882
882/2 = 441
441/3 = 147
147/3 = 49
49/7 = 7
7/7 = 1

You need to find the number of permutations of the 5 beaches, taken 3 at a time: