Please help me, if you help then thanks!

If lmn=xyz, which congruences are true by cpctc? check all that apply

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

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.