Not much. Graphic design is the creation communicative material, typically for print but can also for the web, such as logo design, editorial layouts, business card designs, brochure, flyers, and...
Math and fashion design relate because in fashion design you make measure ments and that relates to math.
Science relates to fashion design because in fashion you need to know what the fabric you are using is made of.
Layout requires knowledge of page dimensions, margins, bleed space. Page count/booklet making, packaging
T-Shirt designs or any other designs you will need for patterns on clothing.