3, 6 ,9, 23.46,69,138. and 207
Answer:
A) The coordinates of the fourth vertex are:
1) x-coordinate:

2) y-coordinate:

B) The point of intersection of the diagonals is: 
Step-by-step explanation:
We need to remember that the diagonals of a parallelogram intersect each other at a half-way point and the midpoint of each diagonal is the same.
The midpoint formula is:

Since:

We can find the coordinates of the fourth vertex
through these procedure:
1) x-coordinate:

2) y-coordinate:

Therefore, fourth vertex is
Since the point of intersection of the diagonals is the midpoint of a diagonal (Remember that
), this is:

Therefore, the point of intersection of the diagonals is 
Actually your answer is wrong. Ava has already use 1 teaspoon of spice plus 1/3 teaspoon plus another 1/2 teaspoon of spice. 1/3 + 1/2 = 5/6 so the answer is 1 5/6 teaspoons of spice.
Answer:
28, 35, 43
Step-by-step explanation:
8-7 = 1
10-8 = 2
13-10 = 3
As you can see you need to add one extra numbers and the sequence goes on
Ab-ab=a(b+c)
a=greatest common factor
facotr them
3=3*1
24t=2*2*2*3*t
greatest common facotr is 3
a=3
3(1)-3(8t)=3(1-8t)