Answer:
10 edges
6 faces
6 vertices
10 bases
Step-by-step explanation:
i’m kinda unsure for the bases but the rest are correct :/
Answer:
The formula for this is 
The value of x would be 7.14 but since it says round to the nearest tenth it would be 7.1 or 7.10
Answer:
I believe if im not mistaken it would be 1,504.8
Answer:

Step-by-step explanation:
By using the formula:-

where, (h,k) is the center and r is the radius
8a+12b because you multiply 2 by each number. For example 4a times 2 is 8a and 6b times 2 is 12b
Hope that helped :)