Answer:
The actual building is 13.3 feet tall.
Step-by-step explanation:
Let the actual height be 'x'.
Given that on a scale drawing with a scale of 1/20, the height of the building is 8 inches, the expression becomes
(1/20) × x = 8
x = 20 × 8 = 160 inches
We know that
Thus, 
160 inches = 160/12 ≈ 13.3 feet
Therefore, the actual building is 13.3 feet tall.
 
        
             
        
        
        
Answer:
144
Step-by-step explanation:
 
        
             
        
        
        
35.5 ft is the width of the room
        
             
        
        
        
12a + 7(2000) > = 38000
12a + 14000 > = 38000
12a > = 38000 - 14000
12a > = 24000
a > = 24000/12
a > = 2000 <==== at least 2000 alumni would have to buy tickets
        
             
        
        
        
Answer:
6 Hours
Step-by-step explanation:
17,100 - 6,300= 10,800
10,800/1,800 = 6