-40) No
0) No
-5) No
13) Yes
21)Yes
c is a correct answer you know
(16,5) it should be
16 input
5 output
if you went to 5 ont he y-axis and keep going till it hits the line the x seems to be 16.
im deeply sorry if this is wrong.
Answer:
which is an irrational number
Step-by-step explanation:
Recall that the repeating decimal 0.7373737373... can be written in fraction form as: 
Now, let's write the number 147 which is inside the square root in factor form to find if it has some perfect square factors:

Then, 7 will be able to go outside the root when we compute the final product requested:

This is an irrational number due to the fact that it is the product of a rational number (quotient between 511 and 99) times the irrational number 
Assuming that the is number seconds, it would be 28.0957