I need this answer asapp pleaseee

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?

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top

If the diagram polygon abcd is a reflection across ef to make polygon a'b'c'd'.