It takes 2 1/2 poster boards to display half of your project. how many poster boards will you need for your entire project? Please help me thank you

Since 2 1/2 boards can display half of your project. You will need two 2 1/2 boards to display your full project. Multiply 2 1/2 by 2 and we get
[tex]2\frac{1}{2}\times2=\frac{5}{2}\times2=\frac{10}{2}=5[/tex]Therefore, you need 5 boards to display your entire project.