R = {(-3, -2), (-3, 0), (-1, 2), (1, 2)} which is a domain

Domain { -3, -1 ,1}

Step-by-step explanation:

The domain is the input values

We write them in order from smallest to largest with out repeating any numbers

Domain { -3, -1 ,1}

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.