What is the unit rate for 7 phone calls in 2 hours

Me what is the value of x? showing work would be appreciated - ! : )

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.

State one method by which you can recognize a perfect square trinomial.