I think the answer is he should've added t instead of subtracting t.
The actual height of the building is 67 1/2 feet
<h3>Complete question</h3>
The courthouse is the tallest building in the city. If it is 7 1/2 inches tall in the model, how tall is the actual building?
Scale factor: 1 inch = 9 feet
<h3>How to determine the actual height?</h3>
The given parameters are:
- Scale height = 7 1/2 inches
- Scale factor: 1 inch = 9 feet
This means that:
7 1/2 inches : Actual = 1 inch = 9 feet
So, we have:
Actual =7 1/2 * 9 feet
Evaluate the product
Actual = 67 1/2 feet
Hence, the actual height of the building is 67 1/2 feet
Read more about scale ratio at:
brainly.com/question/12416132
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Answer: 
Step-by-step explanation:
Given
The actual length of the parking lot is 75 m
length in the drawing is 135 cm
Here, 75 m is equivalent to 135 cm
Using unitary method
All faces are rectangles.
Each two opposite faces are congruent and have the same area.
Two faces measure 20 cm by 7 cm.
Two faces measure 20 cm by 15 cm.
Two faces measure 15 cm by 7 cm.
total surface area = 2 * 20 cm * 7 cm + 2 * 20 cm * 15 cm + 2 * 15 cm * 7 cm
total surface area = 280 cm^2 + 600 cm^2 + 210 cm^2
total surface area = 1090 cm^2
Answer:
No
No
Yes
Yes
No
No
Step-by-step explanation:
I hope this helps
