A student looked at a pollen grain using a light microscope. The image length of the pollen grain was 45 mm45\text{ mm}45 mm. The real length of the pollen grain was 0.15 mm0.15\text{ mm}0.15 mm. Calculate the magnification used to view the pollen grain. Use the equation: $\text{magnification} = \frac{\text{size of image}}{\text{size of real object}}$