Answer:
10
10
Step-by-step explanation:
One fifth of fifty is 10.
Answer:

Step-by-step explanation:
lets say you have two negative numbers, -x and -y (x and y are positive).

Answer:
the answer is zeroo
Step-by-step explanation:
Answer:
Angle #4
Step-by-step explanation:
4 & 5 are equal, and opposite.
1 & 2 are also congruent by this standard.
The second one should be correct