What is 5 1/6 + (-3 5/6) ?

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

Can someone answer this question? : )

Anita has a success rate of 80% on free throws in basketball. she wants to know the estimated probability that she can make exactly four of five free throws in her next game. how can she simulate this scenario? categorize each simulation of this scenario as correct or incorrect.