In the transformation abc a'b'c the preimage of a is

What value of x is in the solution set of –5x – 15 > 10 + 20x?

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.

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