The first term of an arithmetic sequence is -5, and the tenth term is 13. find the common difference. use the common difference to find the 18th term in the sequence.

i am unable to solve this problem

step-by-step explanation:

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

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step-by-step explanation:

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a

step-by-step explanation:

u take $30 minus $24. the answer/original($30)