A rectangular garden measures 20m by 10m. a large garden is to be made by increasing each side of the original garden by the same amount to create a uniform
border, the resulting total 600m^2. find the width of the border to the nearest
hundredth if necessary.

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.