Question

v) {x|x € N, 3x - 9 < 7}​ write in roster form

Answer 1

We need to solve the given inequality first
3x-9<7
3x<16
x<5.333333...
As x belongs to N(set of natural numbers)
Permissible values of x in roster form is {1,2,3,4,5}

Hope you understood

Answer 2

Answer:

which is required ans of this question