Respuesta :

Let us count up the feet first, then the inches.

First, we must know that 1 foot = 12 inches

6+8 = 14

Now the inches.

10+9 = 19

19-12 = 7

14+1 = 15

Final answer: 15 feet, 7 inches
♥ Sum means addition
Add the Feet and Inches
6+8 = 14 feet
10+9 = 19 inches
Now since 1ft=12 ft then we have to use that to solve for our formula:
14+1 = 15 feet
19-12 = 7 inches 
Answer: A. 15 ft. 7 in.

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