I NEED HELP ASAP Luke usually goes to the store and buys a certain brand of cereal that costs $3.50 per box. Luke changes to shipping the order to his house instead of going to the store, the only issue is that he also pays $3.00 for shipping. The equation shows the price, y, as a function of the number of boxes, x, for the new brand.

y = 2.90x + 3.00

Part A: How much more is the price of a box of Luke's original brand of cereal than the price of a box of the super-saving brand? Show your work. (2 points)

Part B: How much money does Luke save each month with the change in cereal brand if he buys 6 cereal boxes each month? Show your work. (3 points)

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

18.8cm hope i at all

step-by-step explanation: