Theres to many letters i dont understand

Which region represents the solution to the given system of inequalities? |-0.5x+y23 | 1.5x+ys-1 5 4 -3 -2 -1 1 2 3 4

For the equations below which statement is true ? -2x=14 6x=-42

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