Jenny spend 24 days at grandmas house last summer. Her sister spent 3/8 of that time at grandmas. How many days did jennys sister spend at grandmas house last summer

Thus, we have
[tex]\frac{3}{8}\times24=\frac{3\times24}{8}=3\times3=9\text{ days}[/tex]Therefore Jenny's sister spent 9 days
the right choice is B