Answer:
The 1st, 2nd and last statement on the +3 side and the rest three statements on the -3 side
3/4b-1/6=1/2×b
1.75b=.3
b=0.2
I believe this is right. But not 100%
100 to 49. Because area is units squared, and it is finding by multiplying the side lengths, you would simply square the ratio.
Answer:

Step-by-step explanation:
Given :

Now,

Therefore, expression is equivalent to 
Answer:180 u
Step-by-step explanation: