Answer:
8 ft.
Step-by-step explanation:
The formula for area of a square is:

We are given the area of 64 square feet.

Each side should be 8 ft.
Hope this helps.
Answer:
Step-by-step explanation:
hello :
y= 5x + 9
y = -x +3
so : 5x+9 = -x+3
5x+x= 3-9
6x=-6
x=-6/6 = -1
Answer:
7
Step-by-step explanation:
You can turn 25/8 into a mixed number by dividing it. It would = 3
Answer:
3x -y = 6
Step-by-step explanation:
When the equation of a line is given in the form ax+by=c, the perpendicular line through point (h, k) will be ...
bx -ay = bh -ak
Here, we have a=1, b=3, h=1, k=-3, so the line is ...
3x -y = 3(1) -(1(-3))
3x -y = 6