40-6 is 34
34 divided by 2 is -7
14+17 is 31
ANSWER: 31
15 × h
h= per hour
and to solve how many hours it would take:
600= 15 × h
600÷ 15 = 40
so it would take 40 hours to rise to the surface
You can check your answer by multiplying 3 with 4 <span>and then add 6 to the product. Then your result will be 18.</span>