A number is rational if it can be expressed as the ratio between two integers (of course the denominator can't be zero).
-1/16 is already a fraction, so it's rational.
0 can be expressed as a fraction: 
for any non-zero integer 
you like
can't be expressed via a fraction between integers, and thus they are irrational.
Answer: CD=28
FD= 16
Step-by-step explanation:
" the sum " means add
the sum of 8 and a number...
8 + n <== ur expression
Answer:
Adjacent angles
Step-by-step explanation:
These are adjacent because they share a side
