Please help Ill give out most and extra points !!!

When y’all answer can y’all explain too !

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

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)