Digital ACT Math Practice Question #2055
Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.
a_22 = 15 + 21*(-3) = -48.
Formula for the nth term of an arithmetic sequence: a_n = a_1 + (n - 1)d = 15 + (22 - 1)(-3) = -48....
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