You're wondering about #8? You know that James has $50 dollars total, but must have $28 when he is finished. When you subtract those two, you find that he has 22 dollars to spend. If each item costs exactly 4 dollars, you would find the closest number to 22, that is a multiple of 4. In this case, your answer would be 5 gifts, because he can spend 20 dollars to buy 5 gifts. Any more than that, and he would be overspending.
