Answer: He should pack 9 elf bread for a 12 day trip.
Step-by-step explanation:
Since, The number of loaves of el bread he used to pack for 8 days trip = 6
⇒ The number of loaves of el bread he used to pack for 1 days trip = [tex]\frac{6}{8}[/tex]
⇒ The number of loaves of el bread he used to pack for 12 days trip
[tex]=12\times \frac{6}{8}[/tex]
[tex]=\frac{72}{8}=9[/tex]
Hence, he should pack 9 elf bread for a 12 day trip.