Abattery is charged. the percentage of the battery's capacity that is charged as a function of time (in minutes) is graphed. graph

Can someone me with my hwplz(only the circled ones)

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.

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?