The model of the granola bars is an illustration of <em>ratios and proportions</em>.
The model that shows the total serving is model A
The given parameters are:
![\mathbf{Bars = 2}](https://tex.z-dn.net/?f=%5Cmathbf%7BBars%20%3D%202%7D)
![\mathbf{Serving = \frac{2}{5}}](https://tex.z-dn.net/?f=%5Cmathbf%7BServing%20%3D%20%5Cfrac%7B2%7D%7B5%7D%7D)
So, the number of servings in both bars is:
![\mathbf{Total = Bars \div Serving}](https://tex.z-dn.net/?f=%5Cmathbf%7BTotal%20%3D%20Bars%20%5Cdiv%20Serving%7D)
Substitute 2 for Bars and 2/5 for Servings
![\mathbf{Total = 2 \div \frac{2}{5}}](https://tex.z-dn.net/?f=%5Cmathbf%7BTotal%20%3D%202%20%5Cdiv%20%5Cfrac%7B2%7D%7B5%7D%7D)
Express as multiplication
![\mathbf{Total = 2 \times \frac{5}{2}}](https://tex.z-dn.net/?f=%5Cmathbf%7BTotal%20%3D%202%20%5Ctimes%20%5Cfrac%7B5%7D%7B2%7D%7D)
![\mathbf{Total = \frac{10}{2}}](https://tex.z-dn.net/?f=%5Cmathbf%7BTotal%20%3D%20%5Cfrac%7B10%7D%7B2%7D%7D)
![\mathbf{Total = 5}](https://tex.z-dn.net/?f=%5Cmathbf%7BTotal%20%3D%205%7D)
The total number of servings is 5
The model that shows a total serving of 5 is model A (see attachment)
Read more about ratios and proportions at:
brainly.com/question/7810782