Answer:
60
Step-by-step explanation:
here are 360° used in a whole pie chart
Using proportion
30° → 5 people
360° → 5 × 360 / 30 = 5 × 12 = 60
There are 60 people altogether
It shows the median. It is the middle line on the plot near the 35 mark.
Recall that 
, so
Multiply on the right by 
and regroup terms:
and finally solve for :
To evalute anything you need expressions for f and g.
By definition of (f+g)(2)=f(2)+g(2) so you take each expression and evaluate them at 2. or you can use (f+g)(2) and calculate f+g and then evaluate whatever you get in 2.
