Divinedumapigo Divinedumapigo Math Answered Math: Acticvity 4: Missing you too! Find the indicated sum of the following sequence. 1.) 1,4,8,16,..., find S82.) -5, -10, 20,... find S73.) 3,-3,3 -3,... find S74.) 1/2, 1/2, 1/2 ... Find S20