Can someone please answer this (please don’t send a tinyurl link)

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

Given the quadratic function f(x)=3x^2-24x+49 a. use “completing the squares” to convert the quadratic function into vertex form b. state the vertex c. find the x and y intercepts d. graph the function

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?