Question

sales (in millions of dollars) in a country at various eating and drinking establishments in the years 2019 and 2020 are shown in the table.
list the elements of the set of eating and drinking establishments that had revenues fall from 2019 to 2020.
choose the correct answer.
a. {f, d}
b. ∅
c. {r}
d. {f, l, d, h, r}

Explanation:

Step1: Compare 2019 and 2020 sales for each type

• For Full - service restaurants (F): \(357014>251853\)
• For Limited - service restaurants (L): \(360416 > 347474\)
• For Drinking places (D): \(5162>3160\)
• For Hotels and motels (H): \(40593>23924\)
• For Retail stores and vending (R): \(40166>39606\)

Answer:

A. \(\{F, D\}\)