Answer:

Step-by-step explanation:
Given


Required
Determine the height at the third rebound
At first rebound;

Second rebound

Third rebound

Hence; the equation is:

Solving further;

The reasons that the sample is representative:
The builders were chosen at random
The population included only builders who build in Vicki's town
Vickie wanted to determine the cost of building a house in her home, so the fact that the builders were from her town makes the sample more representative. Moreover, the random choosing of the builders helps to remove any biases that may be present.
Answer:
Brand C
Step-by-step explanation: