I am having a hard time with wording of a simple agreement (just as an exercise, not a real thing, of course).
I am trying to express that for each hour the person spends on some task, he will get $10. To be specific, if a person spends 1 hour and 1 minute on the task, he will get $20 in total.
Is there a single adjective I can use to write something like "For each my-adjective-here hour spent on the task, you will get $10"?