Answer:
Kira sent 19 text messages, Goran sent 14 text messages and Joe sent 57 text messages.
Step-by-step explanation:
Let be "k" the number of text messages that Kira sent during the weekend, "g" the number of text messages that Gora sent during the weekend and "j" the number of text messages that Joe sent during the weekend.
We know know that they sent a total of 90 text messages then:

Goran sent 5 fewer messages than Kira. This is:

And Joe sent 3 times as many messages as Kira. Then:

The steps to solve this are:
- Substitute the second equation and the third equatio into the first equation and then solve for "k":

- Substitute this value into the second equation to find "g":

- Substitute the value of "k" into the third equation to find "j":

You can name Plane P, many different ways,
Assuming you are asking this out of a textbook staring at a figure of a Parallelogram, their are probably points inside that shape and the way you would name it would be naming using any three points in the plane that are NOT on the same line in any order. <span />
Answer:
It means that the both sides of the expression in the given equation must be/are congruent.
Hope this helps!
Answer: 29 feet from across the kitchen to one hole to the other.
The length should be 80 feet.
This is because the width is 20 since there are two sides for the width in pen, we have to add 20+20. This would equal 40. Then we need to subtract 40 from 200. 200-40 would be 160. Then since there are two sides for the length, we need to split that in half. 160÷2 would be 80. To double check, you can do 80+80, and that would still be 160. So the length of one side would be 80. But of course, this whole thing would only be right if the pen has four sides(but since I have seen many chicken pens, there were all rectangular)