Whats the question?
I think the question is "how much are 7 of them if the sale wasn't going on."
which, without the sale, each cookie is originally $1.5, multiplied by 7, is $10.5 so you save a lot of money.
i think this was your question
Short Answer: 560 cm squared
Long Answer:
You can get the volume of a rectangular prism by multiplying the height, width, and length together.
A) Width = 9/2, length = 10
Rectangle area = length(l)x width(w)
9/2 = 4.5
4.5(l) x 10(w) = 45ft
