Help me please

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

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?

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq