Composite function can someone explain this to me thanks

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

c. (3,2,6) is the answer.

95.03 is the answer. hope this !

i'm sorry mate, but i am not seeing any figures. i am unable to solve this for you.