Lara earns 8% commission on sales. on one sale, her commission was $20.40. what was the amount of that sale?

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 graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)