Thomas buys a certain brand of cereal that costs $8 per box. luke 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 = 6.9x

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

part b: how much money does he save each month with the change in cereal brand if he buys 6 cereal boxes each month? show your work. (10 points)