En tu cuaderno clasifica los verbos según su conjugación verbal

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

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

80 the answer is 80

step-by-step explanation: