Answer:
A. f = 400 + 50d
Step-by-step explanation:
First, let's understand each quantity/variable.
- d: The variable, d, represents the number of days.
- f: f represents the total amount of eyeliners sold after each day.
- 400 eyelines sold: This means that Rihanna sold 400 eyeliners on the first day of the release of her liquid eyeliner. This is known as the y-intercept.
- 50 eyeliner sales per day: This means that after her first day, Rihanna sold 50 eyeliners each day. This can be represented as 50d. Â
Now that we understand these variables, we can conclude that the equation would be A. f = 400 + 50d because to find the total, we have to add the 400 eyeliners sold at the beginning to the 50 eyeliner sales per day.
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