The answer to this is Complementary Angles.
Answer:
72
Step-by-step explanation:
First differences are ...
18 -17 = 1
22 -18 = 4
31 -22 = 9
47 -31 = 16
We observe that these are square numbers. The next square number is 25, so we expect the next number in sequence to be ...
47 +25 = 72
it is c. because the function is not a dependent or independent variable
Y = (2)^(n+1) - 2
is the general term for this.
The answer is 101 and 102.
101 and 102 are back to back and 101+102=203