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The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

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?

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15