1.72 because rocks 1 and 2 add up to 44.58 46.3-44.58=1.72
Answer:
C. 1 / (a(a - 1))
Step-by-step explanation:
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Just know that:
n! = n(n-1)!
= n(n-1)(n-2)!
= n(n-1)(n-2)(n-3)!
= ...
The answer is 256 ,
explanation- 6+2 is 8 and 36-4 is 32. 8 times 32= 256