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

4 + (5 + 4) ÷ 2 x 5 - 4²
P: 4 + (9) ÷ 2 x 5 - 4²
E: 4 + 9 ÷ 2 x 5 - 16
MD: 4 + \( \frac{9}{2} \) x 5 - 16
MD: 4 + \( \frac{45}{2} \) - 16
AS: \( \frac{8}{2} \) + \( \frac{45}{2} \) - 16
AS: \( \frac{53}{2} \) - 16
AS: \( \frac{53 - 32}{2} \)
\( \frac{21}{2} \)
10\(\frac{1}{2}\)

To find the average of these 4 numbers add them together then divide by 4:

\( \frac{15 + 11 + 15 + 11}{4} \) = \( \frac{52}{4} \) = 13

To add these fractions, first find the lowest common multiple of their denominators. The first few multiples of 6 are [6, 12, 18, 24, 30, 36, 42, 48, 54, 60] and the first few multiples of 14 are [14, 28, 42, 56, 70, 84, 98]. The first few multiples they share are [42, 84] making 42 the smallest multiple 6 and 14 share.

Next, convert the fractions so each denominator equals the lowest common multiple:

\( \frac{7 x 7}{6 x 7} \) + \( \frac{7 x 3}{14 x 3} \)

\( \frac{49}{42} \) + \( \frac{21}{42} \)

Now, because the fractions share a common denominator, you can add them:

\( \frac{49 + 21}{42} \) = \( \frac{70}{42} \) = 1\(\frac{2}{3}\)

guard shots made = shots taken x \( \frac{\text{% made}}{100} \) = 30 x \( \frac{45}{100} \) = \( \frac{45 x 30}{100} \) = \( \frac{1350}{100} \) = 13 shots

The center makes 35% 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 = \( \frac{13}{\frac{35}{100}} \) = 13 x \( \frac{100}{35} \) = \( \frac{13 x 100}{35} \) = \( \frac{1300}{35} \) = 37 shots

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

The amount of flour you need is (3\(\frac{3}{8}\) - 1) cups. Rewrite the quantities so they share a common denominator and subtract:

(\( \frac{27}{8} \) - \( \frac{8}{8} \)) cups
\( \frac{19}{8} \) cups
2\(\frac{3}{8}\) cups