Because when you subtract a negative number the signs cancel out and become and addition problems
Answer: There are 2346953264 ways to do so.
Step-by-step explanation:
Since we have given that
Total number of selected countries = 12
Number of selected countries from a block of 45 = 3
Number of selected countries from a block of 57 = 4
So, remaining number of selected countries from a block of 69.
So, 12-(3+4)=12-7=5
Now, we need to find the number of ways, so we will use "Combination" to select that number of countries.
So, it becomes.

Hence, there are 2346953264 ways to do so.
We need a number to complete

Since we have

And so the expanded square is

Just use quiz lit and it’ll give you all the answers you need for your answers. Ok. Ok. Keixhshshwiwie I rrjicicjrjwjwiwosodod.
Answer: c
Step-by-step explanation:
Because the total should be at the end plus how much pounds it is so c