The percentage increase; you'll need to take the new value and subtract it by the old value. 
16 - 13 = 3
Next, you'll divide 3 by the original value. 
3 ÷ 13 = 0.23
And multiply by 100
The percentage increase of friends is 23%
 
        
             
        
        
        
Answer:
Step-by-step explanation:
T=V/6-5
T+5=V/6
6(T+5)=V
V=6T+30
 
        
             
        
        
        
C=2pir
20pi=2pir
20pi/2pi=2pir/2pi
R=10
Height=10/2=5
Two circles surface areas is 
2*pir^2
2pi10^2
2*100pi
200pi
The cylindrical part is
2pirh
2pi*10*5
100pi
Add 100pi+200pi=300pi
        
             
        
        
        
Good morning 
Answer:
B: (1, 5)
Step-by-step explanation:
This graph shows the solutions to the inequality: y > (1/3)x - 2
Since, 5 > (1/3)×1 - 2 then the point (1 ,5) is a solution to the inequality.
____________________________
:)
 
        
             
        
        
        
Im sorry if I misunderstood the problem but heres my take.
Answer:
1155 for the cost of the people and 1250 for the total including the $95
Step-by-step explanation:
Multiply it ( 77 x 15 ) 
then add the answer to the $95 ( 95 + N )
= $N