1. A workbook is 27 7/8 cm by 21 1/2 cm. what is the total distance around each page of the workbook.

So what do you think ?
You have an equation there to solve...

https://www.askmehelpdesk.com/math-s...-b-u-font.html

How many sides does a page have? My arithmetic teachers always told us students to draw a picture.