Can someone help me? i'll be giving brainliest

Does anyone know how to do geometryme with this problem

Interest begins accruing the date of the transaction except for auto loans mortgages credit card cash advances credit card purchases

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.