Write the number of ways in which 5 red and 4 white balls can be drawn from a bag containing 10 red and 8 white balls.

Write the maximum number of points of intersection of 8 straight lines in a plane.

Write the number of parallelograms that can be formed from a set of four parallel lines intersecting another set of three parallel lines.

Write the number of ways in which 12 boys may be divide into three groups of 4 boys each.

Write the total number of words formed by 2 vowels and 3 consonants taken from 4 vowels and 5 consonants.