What is the decay factor of the exponential function represented by the table

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b

Idon't want to fail summer school.the probabilities of contamination in medicine capsules due to the presence of heavy metals and different types of microbes are given in the table.the probability of capsule b having microbial contamination is (the same as, greater than, less than) the probability of capsule d having it.