To divide fractions, invert the second fraction and then multiply:

\( \frac{4}{8} \) ÷ \( \frac{2}{7} \) = \( \frac{4}{8} \) x \( \frac{7}{2} \)

To multiply fractions, multiply the numerators together and then multiply the denominators together:

\( \frac{4}{8} \) x \( \frac{7}{2} \) = \( \frac{4 x 7}{8 x 2} \) = \( \frac{28}{16} \) = 1\(\frac{3}{4}\)

A prime number is an integer greater than 1 that has no factors other than 1 and itself. Examples of prime numbers include 2, 3, 5, 7, and 11.

guard shots made = shots taken x \( \frac{\text{% made}}{100} \) = 20 x \( \frac{55}{100} \) = \( \frac{55 x 20}{100} \) = \( \frac{1100}{100} \) = 11 shots

The center makes 50% of his shots so he'll have to take:

shots made = shots taken x \( \frac{\text{% made}}{100} \)
shots taken = \( \frac{\text{shots taken}}{\frac{\text{% made}}{100}} \)

to make as many shots as the guard. Plugging in values for the center gives us:

center shots taken = \( \frac{11}{\frac{50}{100}} \) = 11 x \( \frac{100}{50} \) = \( \frac{11 x 100}{50} \) = \( \frac{1100}{50} \) = 22 shots

to make the same number of shots as the guard and thus score the same number of points.

To divide terms with radicals, divide the coefficients and radicands separately:

\( \frac{20\sqrt{14}}{4\sqrt{2}} \)
\( \frac{20}{4} \) \( \sqrt{\frac{14}{2}} \)
5 \( \sqrt{7} \)

A factorial has the form n! and is the product of the integer (n) and all the positive integers below it. For example, 5! = 5 x 4 x 3 x 2 x 1 = 120.