Giúp hộ em câu này với ạ

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

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?