Answer: 17.5
Step-by-step explanation:
The girl bit doesn't really matter except for how it says 5/9 which shows that you should factor it by 3's. If you multiply both the 2 and the 3 in 2/3 you would clearly get 6/9. Which is the same thing but is to get it matching with how the question wrote about the people wearing glasses.
Answer: 6/9 people
Answer:
$1.25 per cup
Step-by-step explanation:
To work this out you would simply divide the price of $5 by the quantity of 4, which gives you 1.25. This is because the price of 4 has been given, and so to find the price of one you would divide the price by the quantity.
The price per unit is 
1) Divide 5 by 4.

Double checking:
To double check your answer you would multiply 1.25 by 4. And if the answer is 5 then you know that your price per unit is correct.
1) Multiply 1.25 by 4.

Answer:
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Step-by-step explanation: