I think that's the element on the second row and the first column which is 15.
Answer:
s= -2
Step-by-step explanation:
1/4n-8=1/4 would be first because it says less than so you switch it. then you put the 8 since it's in the same subtraction problem. Then the word "is" indicates the equal sign. and the n represents "a number" since it is unknown.
The answer to your question is option b because opposite angles in a quadrilateral are equal to one another
PEMDAS
you would do left to right and look for multiplication or division.
64/2= 31
31*16=512