Answer:
15 feet tall.
Step-by-step explanation:
To find the height of a building, we can set up a ratio as shown:
[tex]\frac{4}{5}= \frac{12}{x}[/tex]
Cross multiply to begin solving for 'x':
4x = 60
Divide '4' by both sides:
[tex]\frac{4x}{4} = \frac{60}{4}[/tex]
x = 15 ft.
