We will use the Pythagorean theorem to determine the height:

Finally:

Answer Ladder will reach the height of 14.59 feet ( to the nearest hundredths).
Answer:
Step-by-step explanation:
Some form of symetric i think....
It's either 30 percent or 70. but i believe the 70 percent walks to school and 30 percent DO NOT walk to school
The answer is the 4th choice