Please Answer this question I will give you 70 points
P. S. I only need help with A and B

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

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 of the following equations is equivalent to x/3-6/x=1