Final answer:
To determine Mercedes-Benz's production in 2023 if it decreased by 20%, multiply the production of the previous year by 0.8. However, without the specific number of vehicles produced in a previous year, we cannot determine the exact number.
Step-by-step explanation:
To find out how many vehicles Mercedes-Benz would produce in 2023 if their production decreased by 20%, we need to subtract 20% from the total production in the previous year. Let's say they produced X vehicles in 2022. To decrease the production by 20%, we multiply X by 0.8 (1 - 0.20 = 0.8). So, the production in 2023 would be 0.8X vehicles.
However, we don't have specific information about the total number of vehicles produced by Mercedes-Benz in any given year. Without this information, we cannot determine the actual number of vehicles they would produce in 2023.