Nyah receives a chain letter and has to copy the letter and send it to 4 of her friends,
have to copy the letter and send it to 4 other friends, and so on.
Finding the number of letters sent on the nth mailing is an example of
a geometric sequence
COMPLETE
If everyone who receives a letter participates, how many letters will be sent on the si
54 X = 4,096
COMPLETE
By the sixth mailing, how many people will have participated since the start?
DONE
I need the last part

step-by-step explanation:

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

answer: what are the following choices