-2*3.06+(7.6*6y2)=240. What is the value of y2? (Round it to 2 decimal points)
-2*3.06+(7.6*6y^2)=240 simplify
-6.12 + 45.6 y^2 = 240 add 6.12 to both sides
45.6 y^2 = 246.12 divide both sides by 45.6
y^2 = 246.12 / 45.6 ≈ 5.40