Im not good at these type of questions at all! it would be nice if someone helped.

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog

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?

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20