Question:
Atree is 12 feet tall and casts a shadow 9 feet
long. A building nearby casts a shadow that
easures 24 feet. How tall is the building? (Drawo
picture, set up a proportion)

18 feet

Step-by-step explanation:

9/12 = 0.75

24 x 0.75 = 18

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m