1. Find the 100th term of the sequence 1, 4, 7, 10, 2. How many terms are in the sequence 10, 15, 20, ..., 150? 3. What is the common difference in the arithmetic sequence: 1_ 4 a ? 3 _, 2, 3, 4 2 4. By hora;r much does the arithmetic mean of 4 and 9 exceed the absolute value of their geometric mean? 5. Find the sum ofthe series: 23 | 35 | 47 i I 191