Determine the value of x

What is the volume of a rectangular prism if the length is 10.4 mm the width is 5 mm in the height is 8 mm

Which is a true statement comparing the graphs of x^2/6^2-y^2/8^2 = 1 and x^2/8^2-y^2/6^2 the foci of both graphs are the same points. the lengths of both transverse axes are the same. the directrices of = 1 are horizontal while the directrices of = 1 are vertical. the vertices of = 1 are on the y-axis while the vertices of = 1 are on the x-axis.

Which number line represents the solution set for the inequality -1/2x> 24?