Which values are areas of cross sections that are parallel to a face of this right rectangular prism? with the numbers of 20,6,4

A.480 square units
B.120 square units
C.80 square units
D.24 square units

Idon't know hope someone you

Hello thereone of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description? answer: atomic mass  was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

(no3)⁻n has oxidation number x,o has oxidation number -2.(x*1 -2*3) charge of the nitrate ion, and we know that charge of the nitrate ion =-1.so,(x*1 -2*3) =-1x-6=-1x=+5answer a. +5.