Expand the expression log base 6 (7k-1) = 3

i think u have 12 apples sorry again i don't really know if it correct i'm just tryna hrlp people out.

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true