Which of these is a irrational number /25, /5, /100, or /16?

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

Sara sells beaded necklaces she makes a profit of 4 dollars pn every neclace she sells which table represents the profit sara makes

The radius of the base of a cylinder is 10 centimeters, and its height is 20 centimeters. a cone is used to fill the cylinder with water. the radius of the cone's base is 5 centimeters, and its height is 10 centimeters.