Answer:
See attachment
Step-by-step explanation:
To see clearly the graph that represents

we rewrite in vertex form to get;

This is a vertical parabola with vertex at (-1.5,-0.25) and opens upwards.
The required graph is shown in the attachment.
(a)The amount of soil he had last week
(b) p/2+4=28
(c) 12 because
(d) 12
400 Imperial pints are less than 100 Imperial gallons,
400 pints = 50 gallons.
Line plots are used to represent data using lines and dots
The difference between the greatest amount of water and the least is 1/2
From the line plot (see attachment), we have the following parameters:


<h3>Calculating the difference</h3>
The difference (d) is then calculated as:

So, we have:

Subtract the common terms (8)

Take LCM


Reduce the fraction

Hence, the difference between the greatest amount of water and the least is 1/2
Read more about line plots at:
brainly.com/question/3521995