Chrissie likes to tip a server in a restaurant a minimum of 20%.she and her friend have a lunch bill that is $18.34. chrissie says the tip will be $3.30. her friend says that is not a minimum of 20%. who is correct? explain.

a triangular prism is a 3 dimensional shape composed of triangles and rectangles. it is made from two triangular bases and three rectangular sides.  

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