Sean and Mariana started drinking their slushies at the same time and tried to drink them as fast as they could. Sean started with $300$ milliliters of slushy, and he drank $5.5$ milliliters per second. The graph of the remaining volume of slushy in Mariana's cup (in milliliters) as a function of time (in seconds) is shown below. **Who drank their slushy faster?** [[☃ radio 1]] **Who finished drinking their slushy first?** [[☃ radio 2]]