Find the rationalizing factor of 3-√5​

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.

Which geometric principle is used to justify the construction below?

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.