Final answer:
The predicted cups of hot chocolate sold on a day when the temperature is 30 degrees Fahrenheit is approximately 156 cups.
Step-by-step explanation:
To predict the number of cups of hot chocolate sold on a day when the temperature is 30 degrees Fahrenheit, we can substitute x = 30 into the equation of the line of best fit, y = -2.67x + 236.5.
So, y = -2.67(30) + 236.5
= -80.1 + 236.5
= 156.4.
Rounding to the nearest whole number, the predicted cups of hot chocolate sold would be approximately 156 cups on a day when the temperature is 30 degrees Fahrenheit.