A. Direction: Given the sequences below, find the indicated term. 1. 6th term of the sequence 1, 5, 9, 13, … 2. 10th term of the sequence 25, 23, 21, 19, 17, … 3. 13th term of the sequence 6, 2, −2, −6, …
B. Direction: Insert the indicated arithmetic means for the following arithmetic sequences. 1. Insert two arithmetic means between 35 and 77. 2. Insert three arithmetic means between −30 and −10. 3. Insert five arithmetic means between −4 and 8.
C. Answer what is asked. 1. Find the sum of the first 13 terms of the sequence: −3, −1, 1, 3, … 2. Suppose a cinema has 42 rows of seats and there are 20 seats in the first row.
Each row after the first row has two more seats that the row that it precedes. How many seats are in the cinema?
