An industrialized country with a high gross domestic product high human development index rating and a strong healthcare system is an example of what country

The answer is - developed.The high GDP, high HDI and the strong healthcare system, are all prime examples of the highly developed countries. These are also the factors that contribute in the development of the countries because people are more satisfied with their lives, they have better health, are financially more stable, so they can and do contribute more for the country and it's welfare.
credit to GeoPanther fot theyre answer     -> 

5×^2+20-15 or -(5x^2-20+15)

Answercompass direction;