What is 24x24? Im so confused plss

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Choose the more precise measurement. 26.4 cm or 8.39 cm

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.