Solve the equation by finding all roots x⁴-16=0

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.

Find the value of x. also give me an explanation so i can complete it to other questions as well, : )

Ling is using fraction strips to add 2/3 and 7/12's the sum is one whole plus how many twelves?