HELP ASAP Which sides form a right triangle?.

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?

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?