This is calculator work. Type in 0.8 inverse tangent and find 38.6598, which, rounded, matches answer D.

**Answer:**

4 hope this helps!

**Step-by-step explanation:**

**Answer:**

k = -5

**Step-by-step explanation:**

The coefficient is the number in front of the variable.

For example:

2x 2 is the coefficient

5y 5 is the coefficient

The degree is the exponent of a variable.

For example:

y "y" has an exponent of 1, so the degree is 1

The variable that has an exponent of 1 is 3x, so **the coefficient of the term is 3**