The value of a collectible coin can be represented by the equation y = 2x + 15, where x represents its age in years and y represents its total value in dollars. What is the value of the coin after 19 years?
We can see that x represents the age in years and y represents its total value in dollars. The question gives us the value of x, 19. So we can plug in 19 for x. This would be y = 2(19) + 15, which is y = 38+15, and when adding them we get $53. So your answer would be D.
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