Can you also explain how you solve it so i can do by myself: ) what is the sum of the first eight terms of the series? (−500)+(−100)+(−20)+(−4)+(−0.8)+ round the answer to two decimal places if necessary. −996.09 −625 −624.99 −623

The answer is -624.99. Its simply you just the -500 by 5 to get -100. and then you continue to divide by 5 until you get the 8th term then add all of them and you get the answer. I hope it helped you, sorry if you didn't understand. plz forgive me.