I think the answer would be 4n
Ok so you round 31 to 30 and 43 to 40 and then you multiply 30 by 40 and get 1200. 1200 is the same thing as 1200.00 bc you can take off the zeros after the decimal and it will be the same. Hope this helped and if your still confused you let me know I'll try to explain it more.
I think a and y is 2 and 3 because in order to get 5 you have to add
we are given that ,
The combined area of two squares is 17 square meters.
Area of square=
Let the side length of smaller square be x
The size of the larger Square are four times as long as the size of the smaller square

So Area of larger square=
The combined Area is 17 square meter.

Hence the smaller square has the side length=
So the larger square has side length=