Problema Solution
One grain of a certain pollen weighs about 3 × 10–5 grams. How many grains are there in a pound of the pollen? (One pound is about 454 grams.) Round to 3 significant digits if necessary
Answer provided by our tutors
454 / (3*10^(-5)) = 151.33*(10^5) = 151*(10^5) grains rounded to 3 significant digits