You can complete this by solving:

Which should give you .274418 or 27.44%
Answer:
below
Step-by-step explanation:
6x + 4x+6 + 8x+3 = 63
6x+4x+8x = 63 - 3 - 6
18x = 54
x = 54/18
x = 3
Side AB = 6(3) = 18
Side AC = 4(3)+6 = 18
Side BC = 8(3)+3 = 27
Answer:
40%
Step-by-step explanation: