Jason had a salary change from $150 a week to $175 a week what is the approximate percent increase of his salary

16.66%

Step-by-step explanation:

175-150= 25/week increase

now to find what that represents as a percent:

175/150 = x/100  cross multiply

150x = 17500 divide both sides by 150

x = 116.66 *** but!!! we now have to remember we started with a "full" salary - this is an increase.

So, 166.66 - 100 = 16.66

16.66%  Are you asked to round your answer to a whole percent? Of so, you might round that to a 17% increase (though this is not as precise as the decimal).

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.

yes

step-by-step explanation:

yes