18. at a concert, 20% of the people are wearing black dresses or suits,
- are wearing navy, 0.35 are wearing brown, and the rest are wearing
a variety of colors (other). write the percent, fraction, and decimal for
each color clothing.
black
navy
brown
other

Out of the 150 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?