The perimeter of a small rectangular lid is 22 centimeters. The length is 6 centimeters Which equation correctly relates the given information and the width, w?

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827