They do not mean the same thing:
4 in 4000 stands for 4 thousands
4 in 400 stands for 4 hundreds.
You can see, that first '4' means 4 000, while the second one means 400, so the first one is 10 times greater.
You have troubles with domains only if you have:
- Denominators
- Roots with an even degree
- Logarithms
In this case, you have neither of these three, so you can compute your function wherever you want. The domain is all real numbers.
11/12 of 7 is simply their product.
Answer:
<em>The price at which A bought the item is $1200.</em>
Step-by-step explanation:
Suppose, the price at which A bought the item is 
dollar.
A sells the item to B at 15% profit. That means, the selling price to B 
dollar.
B sells the same item to C at 20% profit. That means, the selling price to C 
dollar.
Given that, C pays $1656 for the item. So, the equation will be.......
So, the price at which A bought the item is $1200.
Answer:
A’ (6,-2)
B’ (1,3)
Step-by-step explanation:
Here, we want to give the coordinates after a counterclockwise rotation of 90 degrees
Given a point with coordinates (x,y)
A counterclockwise rotation at 90 degrees to the origin will yield the coordinates (-y,x)
So A (-2,-6) will be A’ (6,-2) while B (3,-1) will be B’ (1,3)
