They are not equivalent fractions. You will have to turn 3/4 into an 8th, so multiply it by two, (6/8) and plot that on a graph. 
        
             
        
        
        
Answer:
36
Step-by-step explanation:
6(4+2)
6(6)
36
 
        
                    
             
        
        
        
Option B is the correct answer because you start with 15 gallons (y-intercept), and the car consumes or decreases at 0.03 gal/per mile (your slope or m).
        
             
        
        
        
So you’ll have to isolate the y by dividing the other side of the equation by 3
3y=-x-3
y=-1/3x-1
-1 will be your y intercept and the slope will be -1/3
you’ll start your line by plotting (0,-1)
then from that point you’ll count down one, right 3
or up one, left 3 
hope this helps (:
        
             
        
        
        
Answer:
Step-by-step explanation:
The work done changes the potential energy
ΔPE = mgΔh = 450(10)(50) = 225,000 = 225 kJ
power is the rate of doing work
P = 225000/5 = 45000 W = 45 kW