What is the length of the actual trail(map 1)

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

Item 1 solve for s. s+24=90 −114 −66 66 114

1.based of the diagrams what is the the value of x? 2.how would you verify your answer for x