solving liner equations magic square after solving each liner equation, sun up the rows and columns they should all equal the same magic number

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²

Find each value of the five-number summary for this set of data. [note: type your answers as numbers. do not round.] 46, 19, 38, 27, 12, 38, 51 minimum maximum median upper quartile lower quartile

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20