Situation 1 Alice Brian, Colin, and Dave each buy lottery tickets. Alice buys half as many tickets as Brian, Colin buys three times as many tickets as Brian, and Dave buys four more than four times as many tickets as Brian. If the tickets cost $4 each and together, they spent exactly 5424, then how many tickets did they each buy? (a) Identify, describe, and label the variables including units. (b) Identify, describe, and specify the values of the main constants including units. (c) Translate the requirements into equations and write any related formula(s). (d) Solve the system of equations by substitution. (e) Check the solutions in the context of the situation and answer the