To earn money for college, Avery works two part-time jobs: A and B. She earns $8 p er h o u r w or kin g a t j o b A an d$ 16 per hour working at job B. In one week, Avery earned a total of $s$ dollars for working at the two part-time jobs. The graph above represents all possible combinations of numbers of hours Avery could have worked at the two jobs to earn $s$ dollars. The x-axis represents hours worked at Job A, and the y-axis represents hours worked at Job B. The line segment connects the points $(20, 0)$ and $(0, 10)$ . What is the value of $s$ ?