A data set is displayed in the dot plot shown, 0 1 2 3 4
5
6 7 8 9 10 11 12 13 14 15 16
What is the mean of the data set . HELPPP

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

no

step-by-step explanation:

2-7=-5

7-2=5

when you combing like terms for ech expression, 5 and -5. these numbers are not equal to each other.