Can someone please help me with this question i am really confused?

Which one is true about the hexagons ?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

Pleting the square f the given find the x-intercepts of the parabola with vertex (-5,13) and y-intercept (0, 12). write your answer in this form: (14,.99). if necessary, round to the nearest hundredth. *- h enter the correct answer, de verter, and ametry 00000 done doo