Dish A had cells with a radius of 3.3 × 10-13 cm. Dish B had cells that had a radius of 3.2 × 10-11 cm. What is the sum of the radii of the two types of cells, using scientific notation? A. 3.233 × 10-11 cm B. 3.233 × 10-15 cm C. 32.33 × 10-14 cm D. 323.3 × 10-13 cm
