Answer:
 percentage is a number or ratio expressed as a fraction of 100.
Step-by-step explanation:
 
        
                    
             
        
        
        
For x intercepts, plug in 0 for y. 
                0 = (x^2) - 2x - 35
*factoring* = (x-7)(x+5)
x intercepts = 7,-5
As for the vertex, you can use the equation -b/2a for the x-coordinate of the vertex
so, 
x = -b/2a = -(-2)/2 = 1
then just find the y value by plugging it back in to the equation. 
y = ((1)^2) - 2(1) - 35
= -36
so, vertex is at (1,-36) 
 
        
             
        
        
        
Answer:
8:15 pm
Step-by-step explanation:
A concert starts by 7:00pm
They perform for 30 minutes
There is a 15 minutes break
The band performs for another 30 minutes
Hence the concert will end by 8:15 pm
 
        
             
        
        
        
a. 60 miles/1 hour because 420/7
b. 12 customers/1 day because 360/30
c. 2.5 meters/1 sec because 40/16 
d. $1.59/1 lb because  7.96/5