Find the first term and the common difference of the arithmetic sequence whose 6th term is 30 and 12th term is 54.

Describe all the numbers that when rounded to the nearest thousand are 645,000

If f(x)=2x+2and g(x)=x^3, what is (g•f)(2)

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.