Probably too late but 6*6+6*3
Student Tickets - x-64
Adult Tickets - x
x+x-64=386
2x=450
x=225
225 adult tickets were sold,
161 student tickets were sold.
Hope that helps!
Answer:
Correct choice is D.
.
Step-by-step explanation:
pick any two points from the table say (0,3) and (1,2)
Now we we can use both points to find the equation of line.
slope 
now plug slope m=-1 and any point say (0,3) into point slope formula





Hence correct choice is D.
.