Should i die? pl help me

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

What’s the volume of the triangular prism?

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.