The amount of flour you need is (3\(\frac{5}{8}\) - \(\frac{1}{4}\)) cups. Rewrite the quantities so they share a common denominator and subtract:

(\( \frac{29}{8} \) - \( \frac{2}{8} \)) cups
\( \frac{27}{8} \) cups
3\(\frac{3}{8}\) cups

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:

8,688,000 in scientific notation is 8.688 x 10⁶

If 58% of the town's 17,000 voters cast ballots the number of votes cast is:

(\( \frac{58}{100} \)) x 17,000 = \( \frac{986,000}{100} \) = 9,860

The mayor got 85% of the votes cast which is:

(\( \frac{85}{100} \)) x 9,860 = \( \frac{838,100}{100} \) = 8,381 votes.

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

To add these radicals together their radicands must be the same:

3\( \sqrt{27} \) + 3\( \sqrt{3} \)
3\( \sqrt{9 \times 3} \) + 3\( \sqrt{3} \)
3\( \sqrt{3^2 \times 3} \) + 3\( \sqrt{3} \)
(3)(3)\( \sqrt{3} \) + 3\( \sqrt{3} \)
9\( \sqrt{3} \) + 3\( \sqrt{3} \)

Now that the radicands are identical, you can add them together: