I need help to solve this... and need a complete method too

Find the distance between c and d on the number line c=3 and d=11

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.

What is the method used to multiply binomials using foil?