a microwave is placed on top of two boxes. one box is 4 feet 11 inches tall, the other box is 4 feet 10 inches tall, and the microwave is 2 feet 7 inches tall. how tall are they combined

12 feet, 4 inches, or 148 inches

Step-by-step explanation:

you can add up all the feet to get 10 feet, and then add up the inches to get 28 inches. To turn inches to feet divide it by 12 to get 2 feet and 4 inches. Then you add it all up to get 12 feet, 4 inches. To turn these into inches you multiply the 12 feet by 12 to get 144 and then add the other 4 inches to get 148 inches in total.

12 feet 4 inches i believe