C. A record of everything you earn.
Answer:
5x - 5
Step-by-step explanation:
To find the missing side, add the two sides together and subtract them from the perimeter.
side 1 + side 2
3x + 2 + 8x + 7
combine like terms
11x + 9
Subtract from the perimeter
16x + 4 - (11x + 9)
rewrite as an addition problem, so you need to change the signs inside the parentheses.
16x + 4 + (-11x -9)
Now combine like terms
5x - 5
Answer:A polynomial added to a polynomial also still gives a polymonial
There are 3 seats currently, and there will be 4m extra seats if he buys m tables.
So, buying m tables give a total of 
seats.
If we want this total to be at least 75, we have
I'd say that the total office space was 2,500,000 sq. ft,
16 400,000
----- = -----------
100 x
16x = 40,000,000
x = 2,500,000
