12/3 = 4
4 cars per hour
4 x 5 = $20
20 x 8 = $160 for 8 hrs
The difference is 4hrs because 6-2 is 4
You are adding 18%, which makes it 118% of original employees
Times 450 by 1.18 = 531
ANSWER

EXPLANATION
It was given that,a bottle of la belle bœuf contains 3/8 ounces of perfume.
We want to find how many ounces of perfume would 4 1/2 bottles contain.
If 1 bottle contains 3/8 ounces;
Then 4½ bottles should contain more ounces.
If more less divides.
4½ bottles contain


=1.6875 ounces.