Question

what is the value of y?

Explanation:

Step1: Use the property of adjacent angles

Adjacent angles on a straight line sum to \(180^{\circ}\). So, \(80^{\circ}+y = 180^{\circ}\).

Step2: Solve for \(y\)

Subtract \(80^{\circ}\) from both sides of the equation: \(y=180^{\circ}-80^{\circ}\).

Answer:

\(100\)