Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate.
amount of fat (in grams) in cookies.

The answer is RATIO

Step-by-step explanation:

Amount of fat (in grams) in cookies

Measurements in terms of ratio always have a meaningful absolute zero.

A meaningful ratio or also called fraction can be shown with a ratio variable. Like weight is a ratio variable. The number of weight measurements can be  compared in terms of the ratio. Like - Amount of fat in cookies to amount of fat in pizzas.

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)