Answer:
Tired
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given




Required
The perimeter
First, calculate the distance between each point using:

So, we have:




So, the perimeter (P) is:


Answer:Y=3/1 X -1
Step-by-step explanation:rise over run 3/1 and then y intercept is -1
Wa=0.5Wb, Ha=20, Hb is unkown
the area of rectangle a is : Wa*20
the area of rectangle b is : Wb*Hb
Rectangle a has 7 times the area of rectangle b: Wa*20=7*Wb*Hb
Replace Wa with 0.5Wb: 0.5Wb*20=7Wb*Hb => Hb=10/7