Your first equation would be: 65 + 3x - 10 + 2x = 180 Then simplify to get: 5x + 55 = 180 Subtract 55 from each side: 5x = 125 Now divide by 5 to find x: x = 25
The measure of angle B = 65 The measure of angle C = 50
Every answer besides B. has an input that repeats. A function contains inputs that have exactly one output. This means x values cannot have more than one y value.