Could someone me asap! the question says “the amounts of plastic waste generated in a region during two years were 32,400,000 tons and 20,300,000 tons. what was the total plastic wasted generated over these two years in the region, expressed in scientific notation.

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.