Answer:
B
Step-by-step explanation:
Using the expansion
tan(x - y) =
, then
tan(x -
)
= 
note that tan( -
) = - tan(
) = - 
= 
=
→ B
It's a because the form for being proportional is
ab=k
or
a/b=k
4/6=k
4 times 6=k
then 5 times 7=k
false so
so there is no ratio so the answer is A
<h2>
Explanation:</h2><h2 />
Hello! Remember you have to write complete questions in order to get good and exact answers. Here I'll help you assuming some things. First of all, for a two dimensional shape, the perimeter is defined as the distance around it. Suppose we have a rectangle whose dimensions are:

So in this context:
Correct option is D. 10x - 20
I think 20 gifts would be exchanged because each family member has to exchange 1 gift to everyone
The best answer is "<span>The buyer paid over 20% of the sales price of the home as a down payment."
This indicates that not only is the buyer paying above the minimum down payment, which means he/she has more cash than the minimum needed to purchase the home, but also that the monthly payments, interest, and total loan will be lower. All of this indicates a less risky prospective borrower. </span>