Brian rolls a fair dice 60 times.
How many times would Brian expect to roll a three?

If 90° < θ < 180° and cotθ = -1/3, then cscθ =

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b?

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?