The answer is
.
Please mark me as brainiest!
Answer:
C, 
Step-by-step explanation:
Euler's formula:

Looking at the expression in the parentheses, your x is explicitly given to you as
, so using Euler's formula:

Which is C.
The perimeter is everything added up, since its not a square then you add not multiply. 24+24=48 and 16+16=32, add 32 and 48 and get 80. Answer:80
14)(4^{2}+2) x 3 = 54
put the paranthesis around 4 squared and 2
15)a natural number is always a whole number, however, a whole number is not always a natural
16) 10, because natural numbers can only be positive, also, zero is not a natural number
17) 3, for abc/abc will equal 1, leaving 3 x 1 = 3
18) No, for if it is division or multiplication, it will have completely different results
19) (x times y) times z ; x times (y times z) ; x times y times z
hope this helps :D
0.4% / 100 =0.004
0.004 x 82.1 = 0.3284