ram start his bike at 8:30 and odometer reading was 1690 after sometime at 10:30 a. m. the reading of odometer is 1800 kilometre calculate his speed calculate his speed of science subject please answer it​

Draw the farm's ppf for corn and beef. draw a point that shows an inefficient combination of corn and beef. label ita. draw a point that shows an unattainable combination of corn and beef. label itb. draw a point that shows an efficient combination of corn and beef. label itc.