Sophia buys a certain brand of cereal that costs $5 per box. yani changes to a super-saving brand of the same size. the equation shows the price, y, as a function of the number of boxes, x, for the new brand.

y = 4.35x

part a: how many more dollars is the price of a box sophia's original brand of cereal than the price of a box of the super-saving cereal? show your work.

part b: how much money does she save each month with the change in cereal brand if he buys 5 cereal boxes each month? show your work.