Answer:
6
Step-by-step explanation:
Straight line is 180
square = right angle=90
180-90=90
5x+(x+54)=90
6x+54=90
6x=36
x=6
Hope this helps :D
Answer:

Step-by-step explanation:
Use the <u>Slope Formula</u> to determine the slope of two given points:

First Point: 
Second Point: 
-Substitute both points:
First Point: 
Second Point: 

-Solve for the slope:



Therefore, the slope is 
Answer: 3rd one
Step-by-step explanation:Because I’m not from 63rd nahh jkjk I don’t have to explain its hard to
Explain
2x+7=?
X=6
2(6)+7=
12+7=19
In six years, the tree will be 19ft
2x+7=44
Minus seven on both sides
2x=37
Divide two from both sides
X=18.5
Thus, it will take 18 and a half years for the tree to reach 44ft
Answer:
The constant of proportionality is 5/3
Step-by-step explanation:
3 * k = 5
k = 5/3
Check
9 * k = 15
9 * 5/3 = 15
3*5 = 15
15 =15
The constant of proportionality is 5/3