Answer:
C 10 columns and 12 rows
Step-by-step explanation:
c = columns 
r = rows
5c + 5c = 10c
6r + 6r = 12r
10 columns and 12 rows
The answer is C
 
        
                    
             
        
        
        

First Consider two points ~ (0 , -3) and (-1 , 0)
Now, use the given formula to calculate slope : 
Therefore, the slope of the graph is -3

 
        
             
        
        
        
Complementary angles add up to 90'
So let X= angle 1
         Y=angle 2
So x+y=90
let x=y-78
so(y-78)+y=90
y-78+y=90
2y-78=90
2y=90+78
2y=168
y=168/2
y=84
x=y-78
so x=84-78
x=6
And 6+84=90
So the measure of the angle is 6 degrees.
Hope i helped!
        
                    
             
        
        
        
You take the orignal price of the video game and subtract the new price to see how much it was reduced. 60-45 = 15. then you take the reduced amount of the game (15) and divide by the original price (60). 
you get 25%
your answer is B