Which polynomial is in standard form?
9+2x–8x*+16x5
1289 – 6x2–9x+12
13x5 + 11x-6x2+5
7x? + 14x® – 17x+25

One month, a music site observed that 60% of the people who downloaded songs from its site downloaded q sam's latest single. the equation below represents this information, where x represents the total number of people who ddownloaded songs from the site that month: x = 0.6x + 384 how many people who downloaded songs from the site that month downloaded q sam's latest single?

Hello can you me find all the products

Me, the vertices of quadrilateral coat are c(2,0), o(7,0), a(7,2) and t(2,2). prove that coat is a rectangle.