Find the zero of the polynomial in the following case:
$q(m) = 0.3m - 0.15$

Verify whether the following are zeroes of the polynomial indicated against them:
$p(x) = x^{2} - 1, x = 1, -1$

Write whether the statement is True or False. Justify your answer.
Zero of a polynomial is always $0$.

Verify whether the following are zeroes of the polynomial indicated against them:
$p(x) = 3x^2 - 1, x = -\frac{1}{\sqrt{3}}, \frac{2}{\sqrt{3}}$

Find the remainder when $x^{3}+3x^{2}+3x+1$ is divided by $5+2x$.

Verify whether the following is a zero of the polynomial indicated against it:
$p(x) = 5x - \pi, \, x = \frac{4}{5}$