On a social media site, Josie gets 10 friend requests. She could accept or reject any of them. How many different possible ways could she respond to this set of 10 requests? Which one is the correct answer?
9
10
11
19
20
21
45
44
46
1024
1023
1025
None of the above

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