Here's the calculation:
* Current cumulative GPA = 3.7
* GPA needed to reach a 3.9 = 3.9
* Number of credit hours completed by the end of sophomore year = 60 credit hours (assuming a typical course load of 30 credit hours per year)
* Number of credit hours needed to reach 75 credit hours (the typical number of credit hours required for a bachelor's degree) = 15 credit hours
* GPA needed for the 15 credit hours to reach a 3.9 GPA = 4.0
Therefore, you will need to earn a 4.0 GPA in your junior and senior years to raise your cumulative GPA from 3.7 to 3.9.
Here are some tips to help you achieve this goal:
* Set realistic goals for yourself. Don't try to take on too many classes at once, and don't expect to get straight A's in every class.
* Manage your time wisely. Create a schedule and stick to it, and make sure to give yourself enough time to study for each class.
* Find a study buddy or group. Having someone to study with can help you stay motivated and accountable.
* Get help when you need it. If you're struggling with a particular class, don't be afraid to ask for help from your professor or a tutor.
With hard work and dedication, you can achieve your goal of raising your GPA.