Anyone wanna out wht the answer is ?

Math i have no idea how to do a and b

Find the center of the circle that can be circumscribed about efg with e(4,4) f(4,2) g(8,2)

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.