1⁄4 + 4⁄8 + 4⁄6 = ???

Which of those sequences is a geometric sequence

Find x to the nearest hundredth place

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