Answer:
0.79 is decimal notation of this
Answer:
uhm i would say the second one but i might be very wrong
Step-by-step explanation:
First simplify.
6xy +21x -4w
From this form you can see better that it is 3 terms
I think so if its not im srry
The geometric mean is defined as the nth root of the product of n numbers
1. 4 and 9
Geometric mean = 
2. 5 and 8
Geometric mean = 
3. 8 and 32
Geometric mean = 
4. 64 and 36
Geometric mean = 
Hope that helped!