A bedroom is 10 ½ feet long by 8 ¼ feet wide. What is the area? If you replace the flooring with new carpet at $1.25/square foot, how much will it cost?

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.