Answer:
If you flip it, it is equal
Step-by-step explanation:
Bac=Dac
it's a very easy one and it's answer is 1728
Answer is 7.b because of the angles
Let the Dulcina's collection be 'x'
Let the Tremaine collection be 'x-39'
x + x - 39 =129
2x = 129 +39
2x = 168
x = 168/2
x = 84
Dulcina's collection = x = 84
Tremaine's collection = x - 39 = 84 - 39 = 45
Option : D
Hope it helps you!
