I don't think there is a ratio for that I have only herd of stuff like "What is the ratio of 5 to 3.
Step-by-step explanation:
12/3.48= cost of 1 book
cost of 20 books = 12/3.48×20 =68.95
Answer:

Step-by-step explanation:
(w circle r) (x) is the composite function(w of r(x)), that is, w(r(x))[/tex]
We have that:


Composite function:

is a negative parabola with vertex at the original.
So the range(the values that y assumes), is:
