Marissa's sunflower is  21 inches taller than her little sister. If her sister is 4 feet 3 inches tall, how tall is Marissa's sunflower in feet?
Since 1 foot is equal to 12 inches, then 4 feet is equal to 4 x 12 = <T>multiply(4, 12)=48 inches.
So, Marissa's sister is 48 + 3 = <T>add(48, 3)=51 inches tall.
The sunflower is 51 + 21 = <T>add(51, 21)=72 inches tall.
Therefore, the sunflower is 72/12 = <T>divide(72, 12)=6.0 feet tall.
