Bob goes shopping. He spends half of his money on groceries, half of what is left on a new tie, and half of what is then left on a new book. With the remaining money, he buys two bouquets
that cost $10 each. How much money did Bob have when he started shopping?
A $60
B $80
C $160
D$320

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%