How many quarts of pure antifreeze must be added to 3 quarts of a 20% antifreeze solution to obtain a 30% antifreeze solution? (Round to the nearest tenth as needed.)

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.