Answer: 6 + 3b ≥ 15 or the fourth one
Step-by-step explanation:
At most is $15 or more so that is equal to and greater than
She has already spent $6 so that's alone and she's gonna get b crackers for $3 each. To find the cost of b crackers you have to multiply b by 3 which is 3b.
Hope I helped!
