The term "3.5" has multiple meanings depending on the context. Here are some of the most common meanings:

• GPA: In the context of education, a 3.5 GPA is equivalent to a B+ letter grade and is above the national average GPA of 3.0.

• Drug slang: In the context of drug slang, "3.5" refers to 3.5 grams of marijuana, which is equivalent to 1/8 of an ounce.

• Mathematics: In the context of mathematics, "3.5" means 3 plus 0.5, which is the same as 3 and a half or 7/2.

It is important to note that the term "3.5" can have different meanings depending on the context, and it is essential to understand the context to interpret the meaning correctly.