Isaac owns a trucking company. For every truck that goes out, Isaac must pay the driver S$19$ per hour of driving and also has an expense of $$1\mathrm{.}50$ per mile driven for gas and maintenance. On one particular day, the driver drove an average of $30$ miles per hour and Isaac's total expenses for the driver, gas and truck maintenance were S$512.$ Write a system of equations that could be used to determine the number of hours the driver worked and the number of miles the truck drove. Define the variables that you use to write the system. This message came from outside your organization

Hudson is blocking off several rooms in a hotel for guests coming to his wedding. The hotel can reserve small rooms that can hold $3$ people, and