Peter packs 2 pairs of socks for each day of his hiking trip and 5 extra pairs in
case of rainy weather.
Let represent the number of days on the trip and represent the total
number of pairs of socks.
(1)) Use the function to find the value of when .

When Peter goes on a hiking trip for 4 days (i.e., ), we can substitute this value into the function to calculate . So we have:

Therefore, . Peter packs 13 pairs of socks for his 4-day trip!

Have you ever heard of the infamous sock monster? This playful myth suggests that socks mysteriously disappear in the laundry due to a mischievous creature! While this certainly adds to the fun of doing laundry, it reminds us to always double-check our packing lists. Ensuring you have the right number of socks can prevent such sock-quest nightmares!

On a lighter note, did you know that in parts of Nepal, trekking is not just about enjoying the scenery, but also about the rich cultural experiences? Socks are often additional necessities; local customs emphasize wearing proper footwear to respect the trails and villages. So while Peter prepares for the rain, he’s also embracing a bit of adventure into local life!