Please help with geometry homework

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read

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%