you need 1661.06 ft squared of carpet to completely cover the floor or a round room. what is the diameter of the room.

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)