What is the measure of QRS?

Chose the graph below that represents the following system of inequality’s

Which of the following represents the zeros of f(x) = 6x3 − 31x2 + 4x + 5? −5, one third , one half 5, − one third , one half 5, one third , − one half 5, one third , one half

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°