What type of graph would best show the growth in the numbers of people owning cell phones from 2000 to 2007?

The graph that would easily allow us to see the increase or decrease of persons or individuals owning cellphone/s from 2000 to 2007, we could use bar graph. This bar graph represents the grouped data in rectangles and the number in y-axis would be shown to differ through the lengths of the bars. 

$3.60

Step-by-step explanation:

we can use conversion factors for this

we can multiply anything by 1, or fractions that equal 1

now 4quarts/1 gal = 1

we can multiply 2gal * 4 quarts/ 1 gal = 8 quarts

28.8/8 = $3.60