Tom sold half of his comic books and then bought 8 more he now has 14. how many did he begin whith

n = number he began with

He sold half:  n → n/2

Then he bought 8:  n/2 → n/2 + 8

He is left with 14:  n/2 + 8 = 14

Solve for n and get

n/2 = 14 - 8 = 6

n/2 = 6

n = 12

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

l.jnl.j/n.m,lm,

step-by-step explanation: