Identify properties used in each step in rewriting the polynomial expression below: (x + 5) + 3(a + (6x)y) step 1: (5 + x)+3(a + (6x)y) step 2: 5 + (x + 3(a + (6x)y) step 3: 5 + (x + 3a + (18x)y) step 4: 5 + (x + 3a +18xy)

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.