the answer should be A because the sea level has rised
Answer:
m = -3 and b = -3
Step-by-step explanation:
No solution at all when you graph the two equations
The answer is B.
-9/3= -3, which means that each number is getting multiples by -3. Therefore, we can eliminate A and D. 27•-3=-81, so we can eliminate C. We are left with B, and we can check this by making sure that each number is correctly multiplied by -3.
Because 1 * 21 = 3 * 7 ( 21 = 21 ) , 1/3&7/21 form a proportion.