Refer to the Scenario Below to Answer the Following Questions

Refer to the scenario below to answer the following questions.
Suzanne and Shandra,longtime friends,share a love of animals and own an animal grooming business together.They own a small fleet of RV motorhomes outfitted with comfortable dog and cat grooming stations.On-the-Go Groomer's motorhomes come to clients' homes in the metro area to provide pet services instead of requiring pet owners to come to them.Suzanne and Shandra are pleased with their success,but both feel that they are not reaching enough potential customers.So far,they have relied on local newspaper advertisements and positive word-of-mouth to generate business.Suzanne said,"We have come so far and really have a great little business going.But I think we could become much bigger with the right plans in place."
-Suzanne and Shandra advertised in the metro newspaper and now want to calculate how many people saw their ad last week.What are Suzanne and Shandra trying to determine?