ratio students packing lunch to those buying lunch is 2: 9 the number of students buying lunch is how many times the number of students packing lunch number of students find lunch is blank times the number since packed lunch​

Can someone me with my hwplz(only the circled ones)

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 of the functions graphed below has a removable discontinuity?