The second one because 4d x c is the correct answer
All you have to do is solve for x. See the following steps below.
Step 1. Subtract
from both sides
Step 2. Simplify
to
Assuming that each kind of seat is unnique and different from each other
( assume 4 kinds, premium, gold, silver, bronze, or premium, not premium, not premium, not premium)
so fraciton is parts out of whole so
1 out of 4 toal parts is 1/4