Graph the function f(x) = 18(0.8)^x

options will be below

The graph in the attached figure

Step-by-step explanation:

we have

This is a exponential function of the form

where

a is the initial value (the y-intercept of the function)

b is the base

r is the rate

b=1+r

In this problem we have

a=18

b=0.8

r=0.8-1=-0.2=-20%  is a decay function

using a graphing tool

The graph in the attached figure

Pint container.

Step-by-step explanation:

Since 1 gallon = 4 quarts ⇒ (1/2) gallons = 2 quarts

1 gallon = 8 pints ⇒ (1/2) gallons = 4 pints

1 gallon = 16 cups ⇒ (1/2) gallons = 8 cups

Therefore from the given relation with gallons we can describe the relation between the cups, quarts and pints.

(1/2) Gallon > quarts > pints > cups

If we need 1 cup of milk then a pint container will be the best choice at a grocery store.