Question 1103496
the picture is that of an equilateral triangle.


as such, each angle must be equal to 60 degrees.


this means that 8y - 4 = 60
add 4 to both sides of this equation to get 8y = 64
divide both sides of this equation by 8 to get y = 8.


that should be your answer.


here's your picture.


<img src = "https://static.k12.com/nextgen_media/assets/8080759-NG_GMT_SemA_05_UT_18.png" alt="$$$">