i need help on these 3 questions
1. 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?
67.9 ⋅ 10^14 tons
6.79 ⋅ 10^7 tons
67.9 ⋅ 10^7 tons
6.79 ⋅ 10^14 tons
2. What is p−m ÷ pn equal to?
p−m + n
p−m ⋅ n
p−m − n
p−m ÷ n
3. Which rational number equals 0 point 1 with bar over 1?
1 over 11
1 over 10
1 over 9
1 over 8

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