Brooke's family consists of her biological mother, biological sister, and step-father. this kind of unit is known as

Blended family

Explanation:

The family is one of the most important institutions of society and it has, over time, undergone several transformations, changing its meaning according to the environment and the historical moment in which it finds itself. All these transformations gave rise to many different types of family. An example of these types is the blended family, which was shown in the question above.

Blended family happens when parents who have children break up, and eventually start living with someone else who may have children in other relationships or not. In this case, some family members are biologically members of the same family, while other members are not. The family shown in the above question shows a mother, two daughters and a stepfather. The stepfather is not biologically a family member, so this is a blended family.

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the last day of school because i didn’t have to go to school the next day