What is the mad of 9, 4, and 8

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?

Ineed to know the answer to this algebra question.

Atemperature of 1.64◦f corresponds to answer in units of ◦c.