You have 16 out of the total of 400 raffle tickets sold so you have a (\( \frac{16}{400} \)) x 100 = \( \frac{16 \times 100}{400} \) = \( \frac{1600}{400} \) = 4% chance to win the raffle.

To add these distances, they must share the same unit so first you need to first convert the swim distance from meters (m) to kilometers (km) before adding it to the bike and run distances which are already in km. To convert 500 meters to kilometers, divide the distance by 1000 to get 0.5km then add the remaining distances:

total distance = swim + bike + run
total distance = 0.5km + 40.7km + 10.6km
total distance = 51.8km

Use PEMDAS (Parentheses, Exponents, Multipy/Divide, Add/Subtract):

5 + (3 + 3) ÷ 4 x 5 - 3²
P: 5 + (6) ÷ 4 x 5 - 3²
E: 5 + 6 ÷ 4 x 5 - 9
MD: 5 + \( \frac{6}{4} \) x 5 - 9
MD: 5 + \( \frac{30}{4} \) - 9
AS: \( \frac{20}{4} \) + \( \frac{30}{4} \) - 9
AS: \( \frac{50}{4} \) - 9
AS: \( \frac{50 - 36}{4} \)
\( \frac{14}{4} \)
3\(\frac{1}{2}\)

There are 2 5-passenger taxis available so that's 2 x 5 = 10 total seats. There are 14 people needing transportation leaving 14 - 10 = 4 who will have to find other transportation.

A rational number (or fraction) is represented as a ratio between two integers, a and b, and has the form \({a \over b}\) where a is the numerator and b is the denominator. An improper fraction (\({5 \over 3} \)) has a numerator with a greater absolute value than the denominator and can be converted into a mixed number (\(1 {2 \over 3} \)) which has a whole number part and a fractional part.