Can anybody answer this question?
I still don't understand maths​

Does anyone know of a quizlet or something for edmentrum /plato algebra 1

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

Evaluate cos2θ for cosθ = square root of 3/2