01:41 A student randomly selected 20 novels from the local library and recorded the number of pages in each of the
novels. The data are as follows: 225, 252, 191, 218, 246, 259, 204, 216, 219, 247 207 279, 241, 224, 216, 225
222, 218, and 220
To make a stemplot, what should the stems be?

Solution to the problem in photo

Step-by-step explanation:

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.

the correct answers i think are b. and d.

give me brainliest if it is correct!