A bus and a train leave the same station at the same time and travel in the same direction along parallel routes. The train runs
twice as fast as the bus. They are from 12 1/2 to 15 miles apart at the end of half an hour. Find the smallest and largest possible value of each rate.
Okay so start by finding the cost of the sandwich and the drink together. Once you have that number you need to find what 7% (or 0.07) or that number is. HINT it should be less than $0.50. Add this 7% to your sandwich-drink total and ta-da!!!