Lisa, Susan, and Chris participated in a three person relay team. Lisa ran 1284 meters. Susan ran 1635 meters, and Chris ran 1473 meters. How long was the race in kilometers?

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.