Answer: i think A is negative -2 and B is -19 hope this help im not a hundred percent sure if i got it wrong please let know.
Step-by-step explanation:
Answer: 918km^2
Step-by-step explanation:

Let x be the new dimension of the area;


Answer:
30
Step-by-step explanation:
We can find the lcm of 2 3 and 6, which is 30
30/2=15
30/3=10
30/6=5
so, it works!
Answer:49
Step by step is 56÷16=3.5
14x3.5=49