Answer:
8.75 cubic feet
Step-by-step explanation:
Your new dresser will be [tex]\frac{2}{5}^{ths}[/tex] larger than your old dresser.
This means that your new dresser wil be
[tex]1+\dfrac{2}{5}=\dfrac{5+2}{5}=\dfrac{7}{5}[/tex]
of your old dresser.
Your old dresser can hold 6.25 cubic feet, so your new dresser can hold
[tex]\dfrac{7}{5}\cdot 6.25=7\cdot 1.25=8.75\ ft^3[/tex]