Really this post is for my reference, since this evening Google reminded me the following things:
calculating sales tax
circumference and surface area of a cone
I felt old when I calculated that it's been 7 years since I've regularly used these formulas. To top is off, leaving the taco stand at dinner I was called mam. I am not old enough to be called a ma'am. It's miss, thank you. Not ma'am!!!
In case you are wondering why this sudden interest in math, I need it to figure out the materials for 1 tipi, so I can create a price sheet. Stay toned for more information on how to place your order.