

Subtract sides -7

Thus ;

So the correct answer is (( A )) .
Answer:
It would be x+6 y+2
Step-by-step explanation:
L is at (-5,-2) and L prime is at (1,0) so -5 to 1 is 6, and -2 to 0 is 2, therefore x+6 y+2
12 students would create 4 groups, if they get 8 cubic meters per hour and they have 5 hours, the equasion would look like: (8*5)*4)=160. They would clear 160 cubic meters in 5 hours.