What's a situation that can be represented by the opposite of -42

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?