Many employers screen by​ GPA, in addition to a variety of skills. Suppose a student is in the last semester of college and has a 2.78 GPA after 105 credit hours. If he is taking 15 credit hours in his last semester and gets a perfect 4.0​ GPA, what will his overall GPA​ be? Is it possible to get his GPA up to 3.0 for​ graduation?