Use the data set to choose the two measures that are equivalent. 4,5,6,7,8

median
mode
mean

Mean and the Median are equivalent.

Step-by-step explanation:

The median = the middle number = 6.

The mean  = (4+5+6+7+8) / 5

=  30/5

= 6.

There us no mode.

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