Total pounds of weight loss of bear in [tex]7 \frac{1}{2}[/tex] months = 64.4 pounds
We have to determine the bear's weight change per month.
We will use unitary method to solve this problem.
So, total pounds of weight loss in 1 month = [tex]64.4 \div 7 \frac{1}{2}[/tex]
= [tex]64.4 \div \frac{15}{2}[/tex]
= [tex]\frac{64.4 \times 2}{15}[/tex]
= 8.58
Since, we have to round to the nearest tenth.
Therefore, the bear's weight change per month is 8.6 pounds.