Find the explicit form of the arithmetic function of p if the first term is 12 and the common difference is 2. Then find the seventh term.

The explicit form of the arithmetic function as described is; f(p) = 2(p-1) + 12. and the seventh term is; 24.
Since it follows from the task content, that the first term is 12 and the common difference is 2.
It therefore follows from convention that the explicit function is; f(p) = 2(p-1) + 12 and by substituting n= 7 into, the equation, we have; f(7) = 24.
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