alright, you're missing a couple things here...
so basically, you're trying to calculate the NPV of your education, which is actually a perpetuity, because we're just gonna assume that it goes on forever etc etc. But in any event, you're going to need to find what your investment dollar amount is (school tuition) and also the growth rate (salary increase etc etc) and from that I can help you calculate the NPV of this perpetuity that you are looking for....even though it won't be accurate at all because theory doesn't really apply directly to the world as it is only a fundamental basis to learn from.
Does he really need all that when the question is just asking for the amount of the starting salary, not the value of ROI or NPV associated with the schooling? I mean it explicitly says not to consider time value of money.