Can someone PLEASE help I have a 32% in algebra 2:(

Which of these is and example of a literal equation? a) 6+30=6^2 b)3x-4y c)12=9+3x d)ax-by=k

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

Ashley spent half of her lunch money on a turkey sandwich. then she spent two-thirds of the money she had left on a bottle of juice and the rest of the money on a cookie. if the cookie cost $.75, how much lunch money did ashley have to start with?