Answer:
1.666667 headphones per hour (simplify this)
Step-by-step explanation:
divide the top and bottom by 3 and you should get your answer
Step-by-step explanation:
21:18=7:6
42:36=7:6
63:54=7:6
Just find the slope between the points
basically find (f(10)-f(7))/(10-7)
f(7)=7^2-3(7)-4=49-21-4=24
f(10)=10^2-3(10)-4=100-30-4=66
slope=(66-24)/(10-7)=42/3=14
average rate of change is 14
Answer:
Step-by-step explanation:
To write the equation of a line use the point slope formula 
. Find m by using the slope formula with the points.
Since the line is parallel, it will have the same slope.
Substitute m = -1/3 and (-3,-4).
Answer: I’m pretty sure the second one (b)
Step-by-step explanation:
