What is the y intercept of the line whose equation is y=3x-4 is

Can someone me with my hwplz(only the circled ones)

Which number line represents the solution set for the inequality -1/2x> 24?

Write an expression that represent sarah’s total pay last week.represent her hourly wage with w monday 5 tuesday 3 wednesday 0 noah hours wednesday 8 only with w wage did noah and sarah earn the same amount last week?