Jwright478 Jwright478 20-09-2022 Mathematics contestada Question 3(Multiple Choice Worth 2 points) (Scientific Notation in the Real World MC) Write the expression as a number in scientific notation (7x10¹x54x10¹) 9x102 4.2 x 10¹0 3.4 x 1010 4.2 x 105 3.4 x 105