16 more than 23. Write each word expression as a numerical expression

How do you summarize data in a two-way frequency table?

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

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