This lesson mixes the Control flow unit on a gym's class timetable: planned and actual attendance, fees, and a week of check-ins.
Decide for each task whether it needs a decision, a loop, a comprehension or one of the loop patterns, and pick the simplest one that works. Some tasks print lines, so the checker compares printed output; others want a value in a variable.
Watch the boundaries: "at least" and "more than" are different tests, and a running total or streak must count the last item too.