Find a formula for the nth partial sum sn of the following series. if the series is finite, determine the sum. if the series is infinite, determine if it converges or diverges, and if it converges, determine the sum. simplify your solution.

1. what are the missing reasons in the proof 2. it's in the second picture and 3

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?