The answer for this is A.(3,1).
hope this helps
Answer: 17:15
Step-by-step explanation:
From the question, we are informed that the ticket booth at a school play sells 170 adult tickets and 150 student tickets.
The ratio of adults to students will be:
= 170/150
= 17:15
The ratio is therefore 17:15.
13x1/2 is the same as 13/2.
Let's analyse the function

The amplitude is A, so we want A=1.5
Now, we start at x=0, and we have 
After one second, i.e. x=1, we want this sine function to make 330 cycles, i.e. the argument must be 
So, we have

so, the function is

Angle O and P are the same.
Subtract angle 1 from 180 and divide by 2:
Angle O = 180-36 /2
Angle O = 144 /2
Angle O = 72