Answer:















Step-by-step explanation:







































































































Answer:
7x+3
Step-by-step explanation:
2x+y
5x-y+3
Then you solve it by crossing out the y and adding the x’s.
7x+3
Answer:

Step-by-step explanation:
we can easily calculate the perimeter of three points, using vectors. See the picture...
A.

Not an arithmetic sequence.
B.

An arithmetic sequence.
Answer B.
Answer:
(2,-4)
Step-by-step explanation:
Just plug in the numbers
6(2)- (-4)/2=14
12- -2=14
14=14