Need help with math problem give 5 stars and brain thingy point

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

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?