Follow the steps to solve the equation using the algebra tiles. −4x + (−3) = –x + 3.

1. Add 4 positive x-tiles to both sides and create zero pairs.

2. Add 3 negative unit tiles to both sides and create zero pairs.

3. Divide the unit tiles evenly among the x-tiles.

Robert plans to make a box-and-whisker plot of the following set of data. 27, 14, 46, 38, 32, 18, 21 find the lower quartile, the median, and the upper quartile of the set? lower quartile: 19.5; median: 29.5; upper quartile: 42 lower quartile: 14; median: 27; upper quartile: 46 lower quartile: 18; median: 27; upper quartile: 38 lower quartile: 16; median: 29.5; upper quartile: 42