Please answer quick I will give a thank you and and five stars

Peaches cost $4.29 per pound. find the cost of two and a quarter pounds of peaches.

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

50 ! pls ! 12.  building codes regulate the steepness of stairs. homes must have steps that are at least 13 inches wide for each 8 inches that they rise.

a. discuss how to find the slope of the stairs.
b. describe how changing the width or height affects the steepness of the stairs.