How to create a story and draw a model for 6 ÷ 1/3​

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

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