Hi again! ;)
If we want to find the surface area of a cube, we need to find the area of one surface first, and then multiply that by 9, since there are 9 sides/surfaces on a cube.
Since each side of a square is the same, we first find the area of one surface:
9 × 9 = 81
Then, to find the surface area, we multiply 81 by 6:
81 × 6 = 486
The surface area is
1/10 of 700 would be 700 would be 70 because 70 x 10 = 100 hope this helped
Answer:

Step-by-step explanation:
We can rewrite the square root of negative 18 as
. We can evaluate these two quantities separately. The square root of 18 can be factored to get 3 squared times 2. We can take the 3 out to get
. Now, the square root of negative one can be rewritten as
, so this is equal to 
Look it up, I tried looking it up on google for you but it said “No solution,” so I don’t really know, I’m sorry :(