A hay rake used by a local farmer originally cost 18,000 depreciates at a constant rate of 6.5% per year. In how many years will the piece of equipment be worth only $7,500?

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: