Respuesta :

Answer:

14

Step-by-step explanation:

4 boards=7 minutes

7x2=14

4b+4b=8b

7m+7m=14m

b=boards         m=minutes

Answer:

If you are calculating the answer for the first 4 boards, then the answer is 28 minutes. If you are saying the first 4 plus the next 4, it is 56 minutes.

Step-by-step explanation:

4 times 7 is 28, 28 times 2 is 56.