If the demand for coffee is relatively elastic the advice that would be given to the friend would be for him to decrease price.
What is relatively elastic demand?
Relatively elastic demand is the type of demand that tells us that there would be a greater change in the demand of the good than the change that occurred in the price of that good.
In this case more people would demand less of the coffee due to the increase in the price.
Read more on relative demand here; https://brainly.com/question/25689290
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