An integer is any whole number, including zero. An integer can be either positive or negative. Examples include -77, -1, 0, 55, 119.

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

9\( \sqrt{9} \) x 7\( \sqrt{5} \)
(9 x 7)\( \sqrt{9 \times 5} \)
63\( \sqrt{45} \)

Now we need to simplify the radical:

63\( \sqrt{45} \)
63\( \sqrt{5 \times 9} \)
63\( \sqrt{5 \times 3^2} \)
(63)(3)\( \sqrt{5} \)
189\( \sqrt{5} \)

You have 2 out of the total of 100 raffle tickets sold so you have a (\( \frac{2}{100} \)) x 100 = \( \frac{2 \times 100}{100} \) = \( \frac{200}{100} \) = 2% chance to win the raffle.

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:

8y⁵ - 4y⁵
(8 - 4)y⁵
4y⁵

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

y³ x 5y⁵
(1 x 5)y^{(3 + 5)}
5y⁸