<em><u>Note: The complete question, along with the graph, is attached below.</u></em>
<em><u /></em>
Answer:
The value of a = 3
Step-by-step explanation:
Given the function

From the attached graph, it is clear that
at x = 0,

∵ 

Thus
When x = 0, the y-intercept will be:

From the attached figure, it is clear that
at x = 0, the value of y = 3
so
putting y = 3 in the equation

3 = a ∵ 
Therefore, the value of a = 3
It's right there in the question, staring back at you. " /100 " means "percent". "20/100" means "20 percent".
Step-by-step explanation:
18 years because Tom's is 3 years old than akina and 15 + 3 is 18
$9.96 is the answer to the question