What were the substitutes for hard-paste porcelain?

How did brunelleschi solve his problem with the dome of the florence cathedral? a. he created an outer support shell. b. he created many layers of support within the dome. c. he created external supports for the dome. d. all of the above

The architect senemut built a great mortuary for which egyptian leader

Identify the tense . you will find that book on the very top shelf.