D , because 28-9=21 and 21=x
Answer:
power and authority are concentrated in the central government and can take away people's right
Step-by-step explanation:
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4 the answer..........,,,,,,,,???????!!!!!!’mmmmmm
It is a good thing to remember. Of course, not all, but some basic numbers that appear all the time such as the numbers from 2 to 13 should be remembered as they appear in numerous assignments and tests.
N-3, n-2, n-1, n and the sum is
4n-6=198 add 6 to both sides
4n=204 divide both sides by 4
n=51
So the fourth number is 51.