Activity 10: More on Arithmetic Sequences Use the nth term of an arithmetic sequence a, = a, + (n-1)d to answer the following questions. 1. Find the 25th term of the arithmetic sequence 3, 7, 11, 15, 19,... 2. The second term of an arithmetic sequence is 24 and the fifth term is 3. Find the first term and the common difference.3. Give the arithmetic sequence of 5 terms if the first term is 8 and the last term is 100. 4. Find the 9th term of the arithmetic sequence with a, =10 and d =- 1 2 5. Find a, if a, = 54 and a, = 60. 6. How many terms are there in an arithmetic sequence with a common difference of 4 and with first and last terms 3 and 59, respectively? 7. Which term of the arithmetic sequence is -18, given that a, = 7 and a, = 2? 8. How many terms are in an arithmetic sequence whose first term is -3, common difference is 2, and last term is 23? 9. What must be the value of k so that 5k-3, k +2, and 3k -11 will form an arithmetic sequence? 10. Find the common difference of the arithmetic sequence with a, =10 and a, = 45. activity is about