Answer:
[tex]175 \frac{1}{2} \: pounds[/tex]
Step-by-step explanation:
[tex]9 \: boxes \: \times 78 \: pounds \: = 702 \: pounds[/tex]
Changing 702 pounds to mixed numbers implies;
[tex] \frac{702}{4} = 175 \frac{1}{4} [/tex]
In simplest form, the result is
[tex]175 \frac{1}{2} \: pounds[/tex]