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 ⋅ 1014 tons
6.79 ⋅ 107 tons
67.9 ⋅ 107 tons
6.79 ⋅ 1014 tons

1.what effect does replacing x with x−4 have on the graph for the function f(x) ? f(x)=|x−6|+2 the graph is shifted 4 units up. the graph is shifted 4 units down. the graph is shifted 4 units left. the graph is shifted 4 units right. 2.what are the coordinates of the hole in the graph of the function f(x) ? f(x)=x^2+3x−28/x+7 3.which graph represents the function?