Juan organizes the stamps in his collection by country and by the decade in which they were issued. The prices he paid for them at a stamp shop were: Brazil and France, $6$ cents each, Peru $4$ cents each, and Spain $5$ cents each. (Brazil and Peru are South American countries and France and Spain are in Europe.)What was the average price, in cents, of his $70\text{'s}$ stamps? Round your answer to the nearest tenth of a cent.
even though i have seen that and the question is very similar I still require some help
I'm pretty sure you're getting these questions from AOPS, if not it doesn't matter but that is a place where people commonly ask questions from. You might want to check if the questions you ask have been answered before. The question has already been answered here.
Hope it helps!