Which integer represents a loss of $400?

Ifurniture stores having a weekend sale and is offering 20% discount on patio chairs and table the sales tax on furniture is 6.25 using function composition how can you represent the total amount a that you would need to pay for this furniture that cost x dollars

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?