The perimeter would just be the equation that they provided to you multiplied by 3 because a triangle has 3 sides, and it is an equilateral triangle, so every side is the same. You do the distributive property to solve the equation and get your final answer.
The answer would be A. the country will have less money to devote to consumer goods, obviously since it is investing the money in military :p the other answer choices hardly make sense
