Melanie collects coins from all over the world. She is reorganizing her collection into coins from Europe and coins from other parts of the world. Six out of every ten of the coins in her collection come from Europe. Write an equation to determine the number of European coins, E, if Melanie has t total coins. Identify the constant of proportionality. Write an equation to determine the number of non-European coins, N, if Melanie has t total coins.
Identify the constant of proportionality.

Melanie collects coins from all over the world. She is reorganizing her collection into coins from Europe and coins from other parts of the world.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

ummm seems that u didnt post the attachement !