1. Each level of a smartphone app adds more gems for you to match. On level one, there were 13 gems. On level twelve, there were 123 gems. When you complete all twelve levels, how many total gems will you have matched?
2. Identify the 25th term of the arithmetic sequence 2, 1 3/5, 1 1/5
3. The first and last terms of a 10-term arithmetic series are listed in the table. What is the sum of the series?
Term Number = 1 , 10
Term = 3 , 75
4. Jennifer has been saving for college for 57 months. The first month, she saved $11. She was able to save more money each month than the month before. She ended up saving $19,779.00. How much more did she save each month?
5. The windows of a downtown office building are arranged so that each floor has six fewer windows than the floor below it. If the ground floor has 52 windows, how many total windows are on the first eight floors?