If 12+18=30 and a is the sum of the previous then what is a+19?

Step-by-step explanation:

if 12 + 18 = 30 and A is the sum of the previous" the sum " is the result of additionmeans A = 30

so A + 19 = 30 + 19 = 49 <===

idk

step-by-step explanation:

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  n=   0.0000 - 0.3750 i  

  n=   0.0000 + 0.3750 i

step-by-step explanation:

one of these should be correct