Answer:
1 x 6 = 6 and 3 x 6 = 18
Step-by-step explanation:
Answer:
Solving the radical
we get 
Step-by-step explanation:
We need to express the radical
using the imaginary unit i
Prime factors of 81 are: 3x3x3x3
and 
Solving:

So, Solving the radical
we get 
25 degrees since all triangles add up to 180 56 and 99 together make 155 and subtract 180 by 155 and you get 25