Answer:
D is true
Step-by-step explanation:
A, B, C, and E are supplementary pairs so they cant equel each other.
Answer:
Option B 
Step-by-step explanation:
we have

A semicolon is used to separate variables from parameters. that we are defining a function of the parameters that returns a function of the variables.
Try to understand this. Hope this help. Answer for 2 only.