Select all the true statements. 1+1=0
5+ (-5) = 0
3 + 0 = 0
-2+2=0
4 + (-4) = 1
6 + 0 = 1

-2+2=0

4+-4=0

are true statement

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

what do you mean by fog

step-by-step explanation: