What two numbers multiply to and add to -32 add to -4

Iam so stuck. what is the worked out answer for this question?

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

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?