I really need help on this

Match each expression with its simplified form.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

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.