The 11th customer because they don't mention it.
Answer:
68276/125
Step-by-step explanation:
500+40+6+1/5+1/125
546+26/125
68276/125
X=18 and y=10 because they are both 90degree angles therefore all you have to do is solve the equations: 5x=90 and 9y=90.
The answer is 9/2. You can use desmos scientific calculator to quickly convert the decimal into an improper fraction or any conversion from decimal to fraction.