Question: Idk how to solve this two questions! APPLICATION 7. In an arithmetic sequence, the 15th term is 48 and the 40th term is 223. Determine

Idk how to solve this two questions!

APPLICATION 7. In an arithmetic sequence, the 15th term is 48 and the 40th term is 223. Determine a, d and the general formula. [5] 8. How many terms are in the sequence 2, 14, 26, ..., 674? Explain your thought process. [A4]

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