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

Solving for time:

time = \( \frac{\text{distance}}{\text{speed}} \)
time = \( \frac{300mi}{50mph} \)
6 hours

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:

0.0000321 in scientific notation is 3.21 x 10^-5

If 52% of the town's 44,000 voters cast ballots the number of votes cast is:

(\( \frac{52}{100} \)) x 44,000 = \( \frac{2,288,000}{100} \) = 22,880

The mayor got 89% of the votes cast which is:

(\( \frac{89}{100} \)) x 22,880 = \( \frac{2,036,320}{100} \) = 20,363 votes.

To divide terms with exponents, the base of both exponents must be the same. In this case they are so divide the coefficients and subtract the exponents:

\( \frac{-8c^8}{3c^2} \)
\( \frac{-8}{3} \) c^{(8 - 2)}
-2\(\frac{2}{3}\)c⁶

To convert a negative exponent to a positive exponent, calculate the positive exponent then take the reciprocal.