Respuesta :

Answer:

It would be 7 inches long.

Step-by-step explanation:

If he stretched it out 2 times the current length that means that you need to multiply. 3 1/2 can be put into the calculator as 3.5. 3.5 multiplied by 2 equals 7.

Answer: 7

Step-by-step explanation:

3.5 times 2 is 7