Answer: 90.5
Step-by-step explanation:
Answer:
Part 1) 
Part 2) 
Step-by-step explanation:
we have that
The cosine of angle theta is negative and the tangent of angle theta is positive
That means that the sine of angle theta is negative
step 1
Find 
we know that

we have

substitute




square root both sides

Remember that
In this problem the sine of angle theta is negative
so

step 2
Find 
we know that

we have


substitute the given values

You can check khan academy for help I’m sorry I don’t exactly know :(
1 hour = 60 minutes
2 3/4 hours = 165 minutes
I'll need a picture of your box plot to answer that question