There are 3 5-passenger taxis available so that's 3 x 5 = 15 total seats. There are 16 people needing transportation leaving 16 - 15 = 1 who will have to find other transportation.

To multiply terms with radicals, multiply the coefficients and radicands separately:

7\( \sqrt{6} \) x 6\( \sqrt{2} \)
(7 x 6)\( \sqrt{6 \times 2} \)
42\( \sqrt{12} \)

Now we need to simplify the radical:

42\( \sqrt{12} \)
42\( \sqrt{3 \times 4} \)
42\( \sqrt{3 \times 2^2} \)
(42)(2)\( \sqrt{3} \)
84\( \sqrt{3} \)

To add or subtract terms with exponents, both the base and the exponent must be the same. In this case they are so add the coefficients and retain the base and exponent:

3c⁶ + 7c⁶
(3 + 7)c⁶
10c⁶

The factors of a number are all positive integers that divide evenly into the number. The factors of 64 are 1, 2, 4, 8, 16, 32, 64.

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

\( \frac{4}{8} \) x \( \frac{4}{7} \) = \( \frac{4 x 4}{8 x 7} \) = \( \frac{16}{56} \) = \(\frac{2}{7}\)