I need help please and I will be happy

What could explain what happened when the time was equal to 120 minutes

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period.value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9