Help me please and thank u

Which of the following is/are a major technological advances of the mayan civilization? a. the calendar c. math b. architecture d. all of the above

According to confucius the main goal of schooling was for young men to become? a. gentle men b. warriors c. monks

Joanna eats 1/8 of a pepperoni pizza, 2/8 of a pizza and 1/8 of a pizza how much of one whole pizza does joanna eat? how many slices are left