Plz hurry its time
which expressions are equivalent?
a. 1/5k - 2/3j and -2/3j + 1/5k
b. 1/5k - 2/3j and -1/5k + 2/3j
c. 1/5k - 2/3j and 1/5j - 2/3k
d. 1/5k - 2/3j and 2/3j - 1/5k

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