Find the slope of the line that passes through (10,7) and (8,17)

-5 because there are 5 points in between those points if it were to be on a graph.

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

answear:

a

step-by-step explanation: a