From the diagram below, if the measure of < C = 30 °, and side AB = 13, then side AC = _.

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

the answer is d. (1.2, -4.7) on edgn

hope this !

is there any photos or whatever?

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!