When you are resizing graphics on a business card, holding down the Shift key serves what purpose? maintaining the orientation of the graphic
keeping the height and width proportional to the original graphic
matching the dimensions of the graphic to the dimensions of the business card
moving the graphic to the background behind any text on the business card

Python. primary u. s. interstate highways are numbered 1-99. odd numbers (like the 5 or 95) go north/south, and evens (like the 10 or 90) go east/west. auxiliary highways are numbered 100-999, and service the primary highway indicated by the rightmost two digits. thus, the 405 services the 5, and the 290 services the 90. given a highway number, indicate whether it is a primary or auxiliary highway. if auxiliary, indicate what primary highway it serves. also indicate if the (primary) highway runs north/south or east/west.