If i = √-1, then i^2 = ?

In a school 2/3 of the students study a language of those who study a language 2/5 study french

Plz a. s. a. p.the table shows the number of male and female contestants who did not win a prize. what is the probability that a randomly selected contestant won a prize, given that the contestant was female? write the probability as a percent. round to the neares tenth, if needed.

Which expression is rational? 6. , square root two, square root 14, square root 49