Sterling silver consists of 92.5% silver and 7.5% copper. what decimal represent the portion of silver in sterling silver?

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?

Does anyone know how to do geometryme with this problem

Which fraction is equal to 1hole and 2/5? a.3/5 b.75 c.57 d.73