Maria is using a meter stick to determine the height of a foot. If the smaller unit on the meter stick is centimeters, which measurement could Maria have used to most accurately recorded the height of the door? A) 2.31 meters
B) 2 meters
C)2.309 meters
D)2.3 meters

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.