None of it is correct because |x-4| = 7 is an absolute equation which can't be subtract or add we have to make 2 equations from it x-4 = 7 and x-4 = -7 and the solve.
We know that 2/3 of all students watch TV shows on their computers. And 234 students were in that survey. 2 / 3 * 234 = 156 Answer: 156 students watch shows on their computer.
