A sealed jar whose volume is exactly 1L which contains 1 mole of air at temperature 20-degree Celsius, assuming that the air behaves as an ideal gas. So what is the pressure inside the jar in Pa? (given:R= 8.314LkPa/molK)

Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression

The table shows the webster family’s monthly expenses for the first three months of the year. they are $2,687.44, $2,613.09, and $2,808.64. what is the average monthly expenditure for all expenses?

Using elimination, what is -4x+2y=-12 4x+8y=-24