Evaluate the variable expression 2n + 4 if n equals 3​

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

You have a square piece of cardboard that measures 14 inches on each side. to build a box, you cut congruent squares out of each corner of the cardboard. use the picture to find the area of the cardboard you were used to build the box