The box plots show the average speeds, in miles per hour, for the race cars in two different races. average speeds of cars in race a average speeds of cars in race b one-half of cars travel at which speeds? between 120 and 143 mph in race a; between 125 and 140 mph in race b between 120 and 170 mph in race a; between 125 and 165 mph in race b between 120 and 153 mph in race a; between 125 and 145 mph in race b between 165 and 170 mph in race a; between 150 and 165 mph in race b

step-by-step explanation:

(s)he  is right it would be 5.5% because it is smaller than 15.5% or anything smaller than 15.5% in general

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

we'll this would mean that the dunk tank and the bounce house are the same for 20 hours because the 2 represents that the two activities, and the 20 represents the amount of hours they both are. so with this said, it means that the answer is c. the costs for a dunk tank and bounce house are the same for 20 hours.

c.the costs for a dunk tank and bounce house are the same for 20 hours.

hope this .