The amounts of paper waste generated in a region during two years were 41,300,000 tons and 50,500,000 tons. what was the total paper waste generated over these two years in the region, expressed in scientific notation?

First you need to add the two years together to get 91,800,000 from there you can start to turn it into scientific notations.

Then start out by putting an imaginary decimal point at the end so you have 91,800,000.

From there you need to move the decimal next to the 9 so 7 spots to the left.

Now that you have the number and the exponent you just put them together.

You should have 9.18 x 10^7