Question about a college class and gpa? help plz?

<p>I am applying to some uc schools. i took some uc transferable courses and am wondering how do they add to the gpa. for instance i took a 4 unit art class in a quarter system… do they calculate the grade i got in there twice as in two semesters worth? like suppose i got a B 4+4 since it counts as an honors class. again i am a senior in high school applying… i just want to know for my sake because my gpa’s not that high and i want to know how it will be added up</p>