Kiersten runs a website that helps people learn programming. Every month, she receives a subscription fee of $10 from each of the subscribers to her website. Last month, the website had 100 subscribers. this month, 30 new members joined the website, and 10 member cancelled their subscription. how much money will her online businesses earn this month?

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i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

boxplot e is the answer