Solve -15 = -20*d + 17*d - 5*g, 3 = d + g for d.
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What is the v'th term of 35, 94, 185, 308?
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What is the v'th term of 103, 212, 321, 430?
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What is the f'th term of 11, 6, -9, -40, -93?
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What is the k'th term of -96, -57, 8, 99, 216, 359?
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What is the b'th term of -15, -23, -33, -45?
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What is the a'th term of 32, 31, 38, 59, 100, 167?
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