A number with an exponent (b^e) consists of a base (b) raised to a power (e). The exponent indicates the number of times that the base is multiplied by itself. A base with an exponent of 1 equals the base (b¹ = b) and a base with an exponent of 0 equals 1 ( (b⁰ = 1).

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

\( \frac{14\sqrt{20}}{2\sqrt{5}} \)
\( \frac{14}{2} \) \( \sqrt{\frac{20}{5}} \)
7 \( \sqrt{4} \)

The absolute value is the positive magnitude of a particular number or variable and is indicated by two vertical lines: \(\left|-5\right| = 5\). In the case of a variable absolute value (\(\left|a\right| = 5\)) the value of a can be either positive or negative (a = -5 or a = 5).

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

-5b² - 6b²
(-5 - 6)b²
-11b²

You have 8 out of the total of 400 raffle tickets sold so you have a (\( \frac{8}{400} \)) x 100 = \( \frac{8 \times 100}{400} \) = \( \frac{800}{400} \) = 2% chance to win the raffle.