I’m dumb so I need help. Lol

the answer is 60

Step-by-step explanation:

Since the value of all angles within a triangle must equal 180 degrees, if you know at least two angles, you can subtract them from 180 to find the missing third angle. If you are working with equilateral triangles, divide 180 by three to find the value of X. All of the angles of an equilateral triangle are equal. Good luck friend :D

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value