Answer:
2
Explanation:
Because if you add 1 to 8 you get 9 then subtract 9 by 7 then and your answer is 2
How long dose the paragraph have to be ?
Answer:
The muscles of the anterior thorax provide movements to the arm and shoulder while the muscles of the posterior thorax also help change thoracic volume during breathing and reinforce the thoracic wall.
A. using new technology to provide additional supporting data.