Answer: (if your asking for the unit rate of that)
the unit rate is 1.10
Answer:
Modification has not reduced the number of accidents.
Step-by-step explanation:

A B C D E F G H
Before modification 5 7 6 4 8 9 8 10
After modification 3 7 7 0 4 6 8 2
Difference -2 0 1 -4 -4 -3 0 -8
Mean of differences 
Standard deviation of differences = 
Formula of paired t test :

Df = n-1 = 8-1 =7

t critical> t calculated
So, We failed to reject null hypothesis
Hence modification has not reduced the number of accidents.
Answer:
Step-by-step explanation:
Answer:
J
Step-by-step explanation:
You can see that one of the rings was originally $24 and on sale it is $18 which is 3/4 or 0.75 of 24. Then if you check that relationship with the other ones where you take the orginal price and find 3/4 or 0.75 of it you get all of the sale prices.
The answer is the last answer choice:
all the real numbers greater than or equal to -3
The range of a function is all the possible y values of a function. From the function you see on the left side, it shows that the minimum value is at (2, -3) and from there it doesn't go any lower meaning all the values will be higher than -3 for the y value.