Mark is running in a 13-mile race.
He has run 5 miles so far.

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

2x^2+5x+17

your welcome. : )

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0

greater than one

step-by-step explanation: