To solve this, make the equation:
2l+2(l-4)=72
4l=80
The length is 20 meters.
Then, plug 20 in the other equation:
w=l-4
The width is 16 meters.
X would be your variable <span>A variable is a </span>quantity that may change within the context of a mathematical problem or experiment. Typically, we use a single letter to represent a variable. The letters x , y , and z are common generic symbols used for variables.
Witch means that X can not be more than -15 it has to be less or equal to.
The answer is A, y=-2.5x+54
Hope this helped (work attached)
Im not sure but i need points :( i’m sorry that i is the answer correct