Tommy has a rectangular storage building with an area of 40 square feet. The building is 3 feet longer than it is wide. Write an equation
that can be used to determine the length and the width of the
building. Use your equation to solve for the length and width of the
building. Show your work.

that one look

step-by-step explanation:

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function