The inequality that models the story is c < 7. To graph the inequality, plot the points on the number line from 0 to 7 and shade the region to the left of 7.
To represent the number of cherry tomato plants Brenna might buy, we can use the inequality c < 7. This inequality models the story because it states that the number of cherry tomato plants Brenna buys must be less than 7. Since Brenna plans to buy fewer than 7 cherry tomato plants, this inequality accurately represents the situation.
To graph the inequality, we plot the points on the number line from 0 to 7. Since Brenna wants to buy fewer than 7 cherry tomato plants, we shade the region to the left of the number 7 on the number line. This represents all the possible values of c that satisfy the inequality.