(1) 15.
Here is a list of numbers.

21 22 23 24
25
26
29
27 28
(a) From the numbers in the list, write down a square number.
hFrom the numbers in the list, write down a number that is a multiple of both 4 and 6

Out of the 180 students at a summer camp, 72 signed up for canoeing. there were 23 students who signed up for trekking, and 13 of those students also signed up for canoeing. use a two-way table to organize the information and answer the following question: approximately what percentage of students signed up for neither canoeing nor trekking? 72% 40% 54% 98%