In each of the following, supply the missing factor. (a) 2x^2+5x-12=(2x-3)( )
(b) 3x^2 -2x -1=(3x+1) ( )
(c) 4y^2 - 8y + 3 = (2y-1)( )
(d) 6t^2 - 7t - 3 = (3t+1)( )​

Two groups of students were asked how many hours they spent reading each day. the table below shows the numbers for each group: group a 1 2 1 1 3 3 2 2 3 group b 3 2 3 2 2 2 1 1 2 based on the table, which of the following is true? the interquartile range for group a students is 0.5 less than the interquartile range for group b students. the interquartile range for group a students is equal to the interquartile range for group b students. the interquartile range for group a employees is 0.5 more than to the interquartile range for group b students. the interquartile range for group a employees is 1 more than the interquartile range for group b students.