a quadratic function y=f(x) is plotted on a graph and the vertex of the resulting parabola is (-4,6).what is the vertex of the function defined as g(x)=f(-x)+3

Which of the following contains a variable?

Which expression is rational? 6. , square root two, square root 14, square root 49

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.