If the common difference in an arithmetic sequence is 4, and the 20th term is 36, what is the first term?

1 answer:

8 0

4 difference, subtract 20 point - 1st point, =19, 19 places x difference of 4= 76 more or less than 36. More would be 112, less would be -40. A and C are both 40 while choice B = the difference so I'd say it's supposed to be 1 of the 40's but it's missing the negative sign

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Step-by-step explanation:

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10 Points! Help is aprreciated!! :)