Apply the markup or markdown to each item and then find the retail sale price of the following items. Round to two decimal places. Question: Adrianna buys a cell phone case marked $12. If the sales tax is 7, what is the total price of the phone case? If u get this right i will sing u a song with my nice voice

y/x=18

step-by-step explanation:

show us the graphs dude

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.

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6