Question

Yani buys a certain brand of cereal that costs $10 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 = 7x
Part A: How many more $'s is the price of a box of Yani'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 Yani save each month with the change in cereal brand if he buys 5 cereal boxes each month? Show your work.

Answer 1

Y=10
Y=7x
10=7x
7/10= 1.43
A.$1.43
1.43•5=$7.15
B.$7.15
I think this is the answer hope it helps