A box contains 421 books. If your teacher orders 19 boxes of books, about how many books will arrive? Use estimation to find your answer. pls help

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

Asap (i need to finish this quick) graph complete the sequence of transformations that produces △x'y'z' from △xyz. a clockwise rotation ° about the origin followed by a translation units to the right and 6 units down produces δx'y'z' from δxyz.

Why is x= 4 a solution to the proportion 14/x 56/1 6