You know that it's a bot when it says "explanation in file".
They forgot to put a question, there's nothing to answer...
To find the difference in weights from two years ago, you will need to combine the 2 differences from the two years.
-1.56 and 0.73 becomes -1.56 + 0.73.
To add a positive and a negative number you will subtract the absolute values of the numbers AND use the sign of the number with the bigger absolute value (negative) in your answer.
|-1.56| - |0.73|
1.56 - 0.73 = 0.83
-0.83
The cat lost 0.83 (-0.83) pounds over 2 years.
4 1/2 = 9/2
5/9 x 9/2 = 45/18
As area of a square is (side)^2. Here one side is 5y.so the polynomial best suits for the area of this square is (5y)(5y)=25y^2
