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

\( \frac{16 + 14 + 17 + 13}{4} \) = \( \frac{60}{4} \) = 15

To raise a term with an exponent to another exponent, retain the base and multiply the exponents:

A number in scientific notation has the format 0.000 x 10^exponent. To convert to scientific notation, move the decimal point to the right or the left until the number is a decimal between 1 and 10. The exponent of the 10 is the number of places you moved the decimal point and is positive if you moved the decimal point to the left and negative if you moved it to the right:

7,911,000 in scientific notation is 7.911 x 10⁶

You have 10 out of the total of 200 raffle tickets sold so you have a (\( \frac{10}{200} \)) x 100 = \( \frac{10 \times 100}{200} \) = \( \frac{1000}{200} \) = 5% chance to win the raffle.

guard shots made = shots taken x \( \frac{\text{% made}}{100} \) = 30 x \( \frac{50}{100} \) = \( \frac{50 x 30}{100} \) = \( \frac{1500}{100} \) = 15 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 = \( \frac{15}{\frac{35}{100}} \) = 15 x \( \frac{100}{35} \) = \( \frac{15 x 100}{35} \) = \( \frac{1500}{35} \) = 43 shots

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