Sam created a porch that was part wooden and part concrete, as shown in the figure below

Astudent simplified a rational expression as shown.

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

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?