Total Cost Calculation for Painting Services

A painting company charges a flat fee of $150 for labor and an additional $25 per hour for painting. The total cost, $C$, for painting services can be represented by the linear equation:

$$C = 150 + 25h$$

where $h$ is the number of hours worked. Determine the total cost for painting services when the company works for 4 hours. Write your answer as a decimal.