First expand the brackets, so 1/2 times x and 1/2 times -2 which is 1/2x - 1. Then take the 6 to the other side of the equals so it becomes a positive. Then add -1 + 6 = 5. Therefore the equation is y = 1/2x + 5
He can receive 8 months of internet. He has $134, and the initial fee is 30. Subtract 30 from 134. This gives you 104. Next, divide by the monthly fee of $13. 104/13=8