Answer: 1. no
2. yes
3. no
4. if they are talking about the repeating number in -5/6, then yes the repeating number is 3.
5. no
I'm not 100% sure abt these answers but since nobody is answering so far here's my opinion :D I really don't want you to lose 100 points so pls b careful!!
Polygon FGHIJ is the result of the rotation of ABCDE.
A = F ⇒ 117°
B = G ⇒ 90°
C = H ⇒ 127°
D = I ⇒ 90°
E = J ⇒ 117°
The measure of angle BCD remains the same because the rotation involves the whole polygon. Thus, it is still 127°
<u>ANSWER</u>
It is not one-to-one function
<u>EXPLANATION</u>
A one-to-one function must pass the horizontal line test.
The graph described in the question looks like the one in the attachment.
A horizontal line drawn in red cuts the graph at more than one point.
Therefore the parabola shown facing up with a vertex 
is not a one-to-one function.
Substitute each x and the respecting y to the equation
