I solved a and b. but having difficult on the rest

Suppose we have a utility function.U.= x2y3 with.prices and Income.(Px, Py, M). . a)-For a given level of utility, what happens to the.MRSxy as we move to either axis?. .That. is, what happens to the MRSxy when x-> 0.or when.y-> 0. .What implication.can.we draw from this?~ b)-Use the Lagrangian method to find the Marshallian demands and the Lagrange. Multiplier...Interpret the Lagrange multiplier. Show .details.Draw.both.Marshallian demand curves .(egin.(x, Px) and (y, Py) space).. Show how this. second constraint alters the demand curves.in .(b). Give the intuition. In either case.with a second restriction, is the expenditure function.still.HOD.1.in.P?.. Why/why not?~