The average speed of 10 drivers on the 405 freeway at 6 p. m. is 64 miles per hour what would the 11 drivers speed have to be to bring the average of all 11 drivers to 65 miles per hour

Miss henderson wants to build a fence around a rectangular garden in her backyard in the scale drawing the perimeter of the garden is 14 in of the actual length of a b is 20 ft how many feet of fencing what you need