Answer:
=infinite
Step-by-step explanation:
Answer:
The first one 6+7i+(4-3i) and the last one 12+6i-(2+2i) are equivalent
To find x, you divide both sides of the equation by 12.20. This would look like this:
12.20x/12.20 =372.10/12.20 . Then, the answer you get is 30.5, so. X=30.5
This is given by the multinomial coefficient:

If you're not familiar with the multinomial coefficient, you may be able to see it more clearly if you count the number of possible combinations taking each distinct letter

times, where

is the number of times it shows up in the original word.
Rectangle
try it with a briefcase and put a cardboard in it (of cours you don't have a brief case, it has gone mostly extinct)
ok, try it with a laptop
close the laptop
how can you read what I'm typing when you close your laptop
close the laptop
slide a paper into the middle of the opening
open laptop
surprise, it is a rectangle
rectangle