All of the following expressions simplify to -5x + 7, except ( x - 2) - (6 x - 9)
(5 x + 1) - (-10 x + 6)
-4 x + 2 x + 7 - 3 x
(4 x + 3) + (-9 x + 4)

What is the standard form of -5x^2+2x^4-11+x^3+3x

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.

Richard save $32 in march he saved $48 in april and $38 in may then richard spent $113 on a keyboard how much money does richard have left