One equation with the sum of -21.5

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

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?

Can someone me with this graph problem by the way i need to know the answers by today since this assignment is due ! !