Ellie received a 20% discount on the purchase of 9 shirts that were originally priced at $11.65 each. What was the total cost of the 9 shirts after the discount

Ineed to know the answer to this algebra question.

Is the response to the survey question "did you smoke in the last week question mark "response to the survey question "did you smoke in the last week? " a discrete random variable, a continuous random variable, or not a random variable?

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.