Which of the following is the missing justification? Step Justification
three plus one third times x equals seven Given
one third times x equals four
x = 12 Multiplication Property of Equality

Distributive Property
Addition Property of Equality
Subtraction Property of Equality
Division Property of Equality

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.