Answer :
Answer:
25%
Explanation:
The percent of increase can be calculated using the following equation
[tex]\frac{\text{ Final value - Initial Value}}{\text{ Initial Value }}\times100[/tex]So, replacing the final value by 9 pounds and the initial value by 7.2 pounds, we get:
[tex]\frac{9-7.2}{7.2}\times100=\frac{1.8}{7.2}\times100=0.25\times100=25\text{ \%}[/tex]Therefore, the percent of increase is 25%