Question is in the picture, brainiledt will be given for a reasonable response.

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:

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /