What is the relationship between the radius of a circle and its circumference?

The spring the owner of a sporting good store decreases the price of winter gloves from $10 to $8 each increases the price of swimming goggles from $8 to $10 without doing the math you think the percent decrease in the price of the gloves the same as the percent increase of the goggles explain why or why not

16 more than the product of 5 and p

Just tell me how to set up the equation.