Find a ∩ b

a = {2, 3, 4, 5, 6} b = {3, 6, 9, 12, 15}

What is the least common factor of 6 and 8

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.