Answer:
x+y+3w
Step-by-step explanation:
The position of the 7 is in the ten thousandths place.
To find the original length you must take away the add-ons. To do so we know that they added 7 and A= l*l (or l squared). They added the 7 to the length so multiply 7*7 (49) subtract your answer from 169 (120) and that's your new area. To find the original length divide by 4 (I believe) and get 30m2
I believe it would be negative 9 because your subtracting by twelve again. I hope that helped
