The diagram shows an early version of the periodic table. The group of gases from the modern periodic table that is not represented in this table is group _. What is the missing number?

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16