Franklin sells hot dogs from his food truck. Franklin models the relationship between the highest temperature on a given day and the number of hot dogs he sold on that day with a linear function. Using data from 7 randomly selected days in one month, Franklin creates a scatterplot and draws a trend line, as shown in the figure. Using the equation of the trend line, which of the following is closest to the predicted number of hot dogs that Franklin will sell on a day when the highest temperature is 87°F ?