Final answer:
After converting feet to inches, we learn that 3 feet is equal to 36 inches, which is more than the 30 inches Mallory requires for the green ribbon, so the store has enough for her needs.
Step-by-step explanation:
The student's question is about converting units of measurement to find out if there is enough green ribbon at the store for Mallory to buy what she needs. Mallory requires 30 inches of ribbon, and the store has 3 feet of ribbon available.
To determine if there is enough ribbon, we need to convert feet to inches, because the measurements must be in the same units to compare them directly. There are 12 inches in one foot. Therefore, to find out how many inches are in 3 feet, we multiply 3 (feet) by 12 (inches/foot):
3 feet x 12 inches/foot = 36 inches
Since 36 inches is more than the 30 inches Mallory needs, the answer is Yes, there is enough ribbon at the store for Mallory.