What interest rate compounded quarterly will yield an effective interest rate of 9%

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

Which expression is equal to (f+g)(x)?

What are two numbers that have a sum of 15