(18 + 36) - 6 =
54 - 6 =
48
Answer:
Options (B) and (C)
Step-by-step explanation:
Farmland owned by Dwight = 1600 acres
He wants to divide his farmland into four equal parts.
So the area of each part of the land will be =
= 
This expression can be written in different ways,
1600 ÷ 4

Therefore, Options (B) and (C) will be the correct options.
The point estimate is the mid-point of the interval:

The margin of error is the difference between the endpoints of the interval and the mid-point.
1. B forms a proportion, this is what I did, i simply 10/18 to 5/9 and i try to see if 5/9 is equivalent to 25/45 and it is. 5/9*5/5= 25/45
2. You multiply 27*4=108 then 108/12=9 so a=12
3. you multiply 16*21=336 then 336/12=28 so b=28
Hope this helps!