The correct answer is \(95\)°.
To solve for \(n\), you can start by finding the measures of the triangle's interior angles. Knowing that a straight line measures \(180\)°, you can subtract the given values from \(180\)° to find the measures of the respective supplementary interior angles. That would give you \(59\)° \((180-121)\) and \(36\)° \((180-144)\).
Now, knowing that the measure of all the interior angles of a triangle is also \(180\)°, you can add the two interior angles you know \((59+36)\) and subtract those from \(180\)°. Doing so would give you the measure of the missing third angle, which is \(85\)°.
Finally, because angle \(n\) is the supplementary angle of the missing angle from the previous step, simply subtract that angle's measure from \(180\)° to find \(n\)°, which is \(180-85\) or \(95\)°.
