Alejandro wrote the number 6,240,000 in scientific notation. Which number did he write?

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.

Which of the following expressions is equal to 2x^2+8

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.