Regular pentagon rstuv has sides that are half the length of a regular pentagon jklmn. what is the ratio of the perimeter of pentagon rstuv to the perimeter of a pentagon jklmn?

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

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