State the numerical coefficient and degree of each expression, if it is a monomial.

$\frac{4a^2}{b}$

State the numerical coefficient and degree of each expression, if it is a monomial.

$42x^{1/4}$

State the numerical coefficient and degree of each expression, if it is a monomial.

$9b$

State the numerical coefficient and degree of each expression, if it is a monomial.

$\frac{1}{8}pq$

State the numerical coefficient and degree of each expression, if it is a monomial.

$-12m^{2}n$

State the numerical coefficient and degree of each expression, if it is a monomial.

$\frac{{\displaystyle 5}}{t^2}$

State the numerical coefficient and degree of each expression, if it is a monomial.

$c^2+13$

State the numerical coefficient and degree of each expression, if it is a monomial.

$\sqrt{7}{d}^3$

State the numerical coefficient and degree of each expression, if it is a monomial.

$-\frac{2}{3}{x}^2{y}^5$