Sia designs a board game in which a card is drawn on each turn. • A blue card means move forward 4 squares. • Ared card means move back 6 squares. Liam suggests adding some other cards to Sia's game. Part A Liam explains that drawing a yellow card is equivalent to drawing a blue card followed by a red card. How many spaces forward or backward does a player move after drawing a yellow card? Justify your answer.