to gain more sales the food truck offers a discount one month of $1.50 off its sandwiches how many more sandwiches will it need to sell to earn more money from selling sandwiches than it pays in expenses and food cost

step-by-step explanation:

m=-16

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