How do i show my work for 5/6 equals 0.83

Acompany is testing in comparing to lightbulb designs the box plot shows the number of hours that each lightbulb design last before burning out which statement is best supported by the information of the plot

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?