When fireworks display made of copper is burned, it lets out light with wavelengths, v v, that satisfy the relationship | v − 455 | < 23 |v-455|<23. Write this inequality without absolute values, find the range of possible values for v v, and then using the preceding list of wavelengths, determine the color of that copper fireworks display.

On a final exam, each multiple-choice question is worth 4 points and each word problem is worth 8 points. lorenzo needs at least 50 points on the final to earn a "b" in the class. which inequality represents x, the number of correct multiple-choice questions, and y, the number of correct word problems, he needs to earn a "b"? 4x + 8y < 50 4x + 8y s 50 4x + 8y > 50 4x + 8y 250