I did the first part I just need the answer for the second part, please help me

Answer:
66000
Step-by-step explanation:
since the graph represents a proprtional relationship the equation of the graph must be written this way :
y = ax where a is the slope
you can notice that 2 goes with 24000
so 24000 = 2a then x = 24000/2= 12000
so a = 12000
now replace x with 5.5
y= 5.5*12000=66000