X axes are supposed to be positive and the y is negative.
A. 70°
Supplementary angles always = 180°
Where 180 - 110 = 70
110+ 70 = 180
Given a point in coordinates form

, one can compute the cartesian form like this:

We have:

We get the cartesian form then:
Answer:
c
Step-by-step explanation:
because you can simplify 4/6 by 2.
2 goes into 4 twice and then 2 goes into 6 3 times
2/3