The amounts of food waste generated in a region during two years were 37,500,000 tons and 30,400,000 tons. What was the total food waste generated over these two years in the region, expressed in scientific notation? (5 points)
67.9 ⋅ 1014 tons
6.79 ⋅ 107 tons
67.9 ⋅ 107 tons
6.79 ⋅ 1014 tons
