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Alina [70]
3 years ago
13

I need help is it A B C or D

Mathematics
1 answer:
Reptile [31]3 years ago
4 0
The question is asking you to solve for A

to determine the first, fourth and tenth term you simply put those values in for (n) 

the first term you then be given by the equation A(1) = 12 + ((1)-1)(3) 

A= 12 

Same thing for 4th term A(4) = 12 + ((4)-1)(3)

A= 21

10th term: A(10) = 12 + ((10)-1)(3)

A= 39 


∴ your answer is C
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