The first relation gives two y-values for any given x-value (except x=6).
y² +x = 6 . . . . . is not a function
The formula to find the measure of an interior angle is

, where

represents the number of sides in the polygon. In this problem,

would represent

.
Let's plug in the value for


Let's simplify that.

Now we know that the <span>measure of an interior angle of a regular three-sided polygon is 60</span>°.
Your answer would be B!Let me know if you have any questions regarding this problem!
Thanks!
-TetraFish
17- I got it I used my brain not Brainly
The answer is 3x+15
You multiply the x and 5 by 3 to get 3x and 15
Answer:
c
Step-by-step explanation: