.

To find the coefficient of each monomial, you need to express each in its standard form:

1. \(5xz - 2y\) - The standard form is already shown, and the coefficient is 5.

2. \(бан \cdot (-2)b\) - Simplify to get \(-2b^2ан\). The coefficient is \(-2\).

3. \(x \cdot 3k^3 \div 3\) - Simplify to get \(xk^3\). The coefficient is 1.

Hope this helps!