Using the 10% value to find 20% of 300

Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?

Atemperature of 1.64◦f corresponds to answer in units of ◦c.