Given :
Median salary of engineer , E = $55,000 .
Median salary of computer engineer , C = $52,000 .
To Find :
The total cost for a business to employ two engineers and three programmers for 1 year .
Solution :
Now , cost of paying two engineers .

Also , cost of paying three programmers .

Therefore , total cost for 1 year is
.
Hence , this is the required solution .
725 is equal to (number of rows)*(number of seats per row)
r = s-4
725 = (s-4)s
s^2-4s-725 = 0
Factoring: (s-29)(s+25) = 0
Thus there are 29 seats per row, and 25 rows.
Answer:
-11
Step-by-step explanation:
Solve using linear equation
-12x=-8+116
-12x=108
-x=11
x=-11