A rectangle has a length of x and a width of 5x +4 - x2. Find the perimeter of the rectangle when the length is 5 feet.

18 feet

Step-by-step explanation:

Perimeter = 2(length + width)

=> 2(x + 5x + 4 - x²)

=> 2(6(5) + 4 - (5)²)

=> 2(9)

=> 18 feet

step-by-step explanation:

i found the koficent of the linear function and i foun c acordind to the strict formula y=kx+c and then i took 2 as an x and replacet it on the formula i found and then foun the y

answer4 to the second power is 16

and 4 to the third power is 64,