A factor is a positive integer that divides evenly into a given number. For example, the factors of 8 are 1, 2, 4, and 8.

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

\( \frac{9 + 5 + 10 + 4}{4} \) = \( \frac{28}{4} \) = 7

1

Average speed in miles per hour is the number of miles traveled divided by the number of hours:

Solving for distance:

distance = \( \text{speed} \times \text{time} \)
distance = \( 70mph \times 5h \)
350 miles

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

\( \frac{1}{5} \) x \( \frac{2}{9} \) = \( \frac{1 x 2}{5 x 9} \) = \( \frac{2}{45} \) = \(\frac{2}{45}\)