A football player's rookie card decreased in value 28% over the past 18 years. This was a decrease of $62.72. What was the value of the card 18 years ago? What is the current value of the card?

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

3+x

step-by-step explanation: