The value of 2 · 5^2 is 100. True or False? If n = 4, the value of the expression 28 - 12 + ÷ 2 is .
A) 15 B) 17 C) 17/2 D) 21

Please answer both!

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

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?