Answer:
The inequality that represent the problem is 
The solution in the attached figure
Step-by-step explanation:
Let
x ----> the number of laptops sold
y ----> the number of smartphones sold
we know that
The inequality that represent the problem is equal to

The solution of the inequality is the shaded area
Remember that the number of laptops or the number of smartphones must be a whole positive number
The graph in the attached figure
H(x)=22x+4 would be the answer because your starting number is 4 and it increase by 22 each year x
Answer: Add 4x to both sides.
Step-by-step explanation:
Answer:
1st : Maximum Value
2nd: When x<-1
3rd : x>-1
4th: All real Numbers
5th : All numbers less than or equal to 0