It would b 9 x (-3^(x-1))
Answer:
2
Step-by-step explanation:

because 
So,

Opposite
additive inverse
The factors of a number are all whole numbers that can be multipled to get that number.
1, 2, 4, 8, 16, 32, 64
Answer:
The average would be 22.25
Step-by-step explanation:
Average = 
6+5+74+4= 89
there are four numbers
=22.25
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