Answer:
(4, 0) and (5, 0)
Step-by-step explanation:
Given
See attachment for graph
Required
The x intercepts
This is the point where 
From the graph, we have the following as the x-intercepts:


Because the curve crosses the x-axis at the above points
Answer:
its a 21:45
Step-by-step explanation: it a because 7x3 will equal 21 you got 21 in there. 15 x 3 will equal 45 and you got 45 there so a is your answer.
The unit rate is also known as the constant of proportionality, but not as a proportion.