Question. During her first year playing soccer, Tara's dad attended 90% of the games she played. In her second year playing soccer, Tara's dad attended 4 fewer games than he did in the previous year. If Tara played 20 games each year, how many games did Tara's dad attend in her second year playing soccer?
Answer. 14
What step-by-step reasoning justifies that answer?
Reasoning: In her first year, Tara's dad attended 20 * 0.9 = 18 games. Then, in her second year, Tara's dad attended 18 - 4 = 14 games.