Cake by $23.40 worth of two types of birds eat this so bird seeds sell for $1.60 per pound in wild birds seeds sell for $.95 per pound if she bought 12 pounds of wild bird seed, right and solve linear equation to find them out of this a bird seed she purchase

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.