Answer:
Laurie entered the mass, in kilograms, of four substances into a spreadsheet. Her spreadsheet automatically converted the masses into scientific notation:
table with 2 columns and 4 rows, first column has a heading of substance, second column has a heading of mass in kilograms, first row, substance A, 2.45 E negative 4, next row, substance B, 6.8 E negative 3, next row, substance C, 7.125 E negative 5, last row, substance D, 9.0 E negative 4
