How many ways are there to select 7 countries in the united nations to serve on a council if 3 is selected from a block of 54, 1 are selected from a block of 66 and 3 are selected from the remaining 69 countries?

Total number of ways will be

Step-by-step explanation:

We have to select 7 countries

3 countries selected from a block of 54

So number of ways of selecting these three countries

Now 1 country is selected from 66 block

So number of ways to select 1 country =

Now next 3 country is selected from 69 country

So

So total number of ways to select 7 countries = 24804×65×52394

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

answer: 4 (:

step-by-step explanation: