I. y= -x+3
That’s is the answer
First solve the equation:
5(3x-7)=20 => 15x - 35 = 20 => 15x = 55 => x=11/3
Fill in this solution in 6x-8:
6*11/3 - 8 = 22 - 8 = 14
Second question: apply the distributive property (ie,. both terms get multiplied by 4/5):
4/5(20x - 10) = 80/5x - 40/5 = 16x - 8
X has to be inside the radical.
It would be

Simplify the radical by breaking the radicand up into a product of known factors.
The length in meters is 5.29 meters.
529 ÷ 100 = 5.29
Anser is 111.1
To find The perimeter you just add all the sides together 10.9+10.9+40.3+40.3 equals 111.1