Answer:

Step-by-step explanation:
A number would be represented as 
"plus 4" is addition so that would be 
fewer and less have the same meaning so that would be a less than sign 
so that's how you get 
90 would work if you mean 5 and 6
Answer:
The importance of foreign employment are: 1) Country can get lots of foreign currency as the remittance which can be used to establish industries in the country. Such industries provide job opportunities in the country. ... 3) Foreign employment reduces the unemployment problem of a country .
I tired ☺
It is any fraction except 0 of 180°.
45/35=54/54-x
9/7=54/54-x
9(54-x)=378
54-x=42
x=12
Hope my answer helped u :)