Nina is buying fabric to make placemats. For every 7 placemats she makes she needs 9 square feet of fabric. If Nina is making 12 placemats, how many square feet of fabric does she need?

the correct answers i think are b. and d.

give me brainliest if it is correct!

answ5

step-by-step explanation:

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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

your answer is option c.