Answer:
The value of n is 11 feet.
Step-by-step explanation:
Given that the area of rectangle from is A = length×width so we have to substitute the variables into the formula in order to find n :

Let area = 33,
Let length = n,
Let width = 3,




Answer:

Step-by-step explanation:
We know that 
Also , 
So ,

Answer:
15
Step-by-step explanation:
a^2 + b^2 = c^2
20^2 +b^2 = 25^2
400 + b^2 = 625
-400 -400
b^2 = 225
b = √225
b = 15
He didn't follow the order the instructions were given to him
The Right expression is:
x-3x10-13