The line y = cx - 2, where c is constant, is graphed in the xy-plane. If the line contains the point (m, n), where m ≠ 0 and n ≠ 0, what is the slope of the line, in terms of m and n ?

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: