Question

Can someone help me with this question? It's in the attachment

Answer 1

1. arithmetric sequence
2. formula --> an= \[28600+1200\times(n-1)\] and the first 5 ears salary is \[\sum_{1}^{5}(28600+1200\times(n-1))=?\]

Answer 2

I agree with karim that this is an arithmetic sequence. Beginning with the first year's salary, add $1200 to obtain the 2nd year's salary. And so on.

Best if you can find the proper formula for this. Write it out. In high school I used l=a+(n-1)d. Have you seen this formula or a similar one?

Helpers: PLEASE, NO DIRECT ANSWERS! Thank you.