the question in English
50 t-shirts were sold at 10€ each. What benefit was obtained if the t-shirts were bought at 7€ each?
Let
x---------> the benefit in euros
we know that




therefore
<u>the answer is</u>
The benefit is equal to 
Answer:
27 feet
Step-by-step explanation:
they go 27 feet because 15+6+6=27