The original price of board game is $ 20
Solution:
Joe payed 14.00 for a board game. This is 70% of the original price
Let the original price of board game be "x"
From given statement,
Joe payed 14.00 for a board game which is 70% of the original price
Therefore, we can say,
70 % of original price of board is equal to 14
70 % of x = 14
Solve the expression for "x"

Thus the original price of board is $ 20