What is the difference mathematically between calculating probability of dependent events versus independent events?

Which point is a solution to the inequality shown in this graph (-3,-3)(3,-1)

To which set of numbers does the number –5 belong? select all that apply. integers natural numbers rational numbers real numbers whole numbers

Julia bought 7 hats a week later half of all her hats were destroyed in a fire. there are now only 12 hats left with how many did she start