Answers:
First model
20% vacancy
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Work Shown:
25 vacant rooms
125 rooms total
25/125 = (1*25)/(5*25) = 1/5 = 0.20 = 20% vacancy
The model that represents this is the first model since there are 5 blocks, and each block is 25 units wide. So the total width is 5*25 = 125. Each tickmark along the top represents an increment of 20%. So we have 0%, 20%, 40%, 60%, 80% and 100%.