I can’t figure this out, please help

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

Do one of the following, as appropriate: (a) find the critical value z subscript alpha divided by 2 , (b) find the critical value t subscript alpha divided by 2 . 99%; nequals 17; sigma is unknown; population appears to be normally distributed.

Rewrite the point-slope equation in slope-intercept form: y - 3 = 2(x + 4)