Answer:
40 square units
Step-by-step explanation:
First of all, lets say that square has side
, so, the area unit is 
the diagonal's square is 
CALCULATION OF TRIANGLES'S AREA (there are 4 triangles)

CALCULATION OF MAIN SQUARE AREA

TOTAL AREA

A) 6u+3u+4-15= (9u-11) <---answer ;) B)-1-2u-9-(-5u)=(3u-10)<--answer C) 7u+25+(-10u)-16= (-3u+9)<--answeeer
4:1 should be your answer I might be dumb♀️
<h2>
Hello!</h2>
The answer is:
The first option, the amount dumped after 5 days is 0.166 tons.
<h2>Why?</h2>
To solve the problem, we need to integrate the given expression and evaluate using the given time.
So, integrating we have:


Hence, we have that the amount dumped after 5 days is 0.166 tons.
Have a nice day!