Which diagram represents the postulate that states exactly one line exists between any two points?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Write the equation in logarithmic form e^x=403.429

Which strategy is used by public health to reduce the incidence of food poisoning?