X + 11 < 20 What is the answer to do? And how do you solve it?

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference 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

The sum of two numbers is 12 and their difference is 18 what are the two numbers