I agree with the author. By using the metric system we know the exact amount of a medicine we took, whether it's in mg or mL. This way every doctor can prescribe the same amount.
If we were using some other units this may not be the case. For example, british and american inch were different until 1950's.
Example: if you go to a surgery and a doctor needs to cut "1 inch from the left part" it may cause a mistake as this unit is different in different countries. But if he needs to cut "2.5 cm from the left part" he knows exactly where to cut.
Another benefit of using metric system is that it is being used in almost every country in the world.
The probability that after re-rolling these three dice, at least three of the five dice show the same value is 
Of the three dice rolled, one may match the original pair and two are different, and this can occur three ways:

[ where
is the probability of matching the first two and
is the probability of not matching the first two ]
Or, two may match the original pair and one is different

Or, all three may match the original pair

Or, all three may be the same, but not match the original pair:

[ where
is the probability of getting a new number and
is the probability of matching that new number ]
Adding these together: 
To learn more about probability with the given link
brainly.com/question/11234923
#SPJ4
Answer:
b=9
(assuming you meant -6x) x = -2
h = -4
a = 6
Step-by-step explanation:
I believe that the correct newer would actually be the last option. By this Eddie person finding the length of the cube, the small cube, as also the cube which is the bigger one, if we were just to find the length and just add them all up, we would then find how many would then fit.