You have 7 out of the total of 100 raffle tickets sold so you have a (\( \frac{7}{100} \)) x 100 = \( \frac{7 \times 100}{100} \) = \( \frac{700}{100} \) = 7% chance to win the raffle.

To simplify a radical, factor out the perfect squares:

\( \sqrt{18} \)
\( \sqrt{9 \times 2} \)
\( \sqrt{3^2 \times 2} \)
3\( \sqrt{2} \)

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

4 + (3 + 2) ÷ 5 x 3 - 2²
P: 4 + (5) ÷ 5 x 3 - 2²
E: 4 + 5 ÷ 5 x 3 - 4
MD: 4 + \( \frac{5}{5} \) x 3 - 4
MD: 4 + \( \frac{15}{5} \) - 4
AS: \( \frac{20}{5} \) + \( \frac{15}{5} \) - 4
AS: \( \frac{35}{5} \) - 4
AS: \( \frac{35 - 20}{5} \)
\( \frac{15}{5} \)
3

An integer is any whole number, including zero. An integer can be either positive or negative. Examples include -77, -1, 0, 55, 119.

Calculate the number of vans needed by dividing the number of people that need transported by the capacity of one van:

vans = \( \frac{41}{13} \) = 3\(\frac{2}{13}\)

So, it will take 3 full vans and one partially full van to transport the entire team making a total of 4 vans.