Nancy had 143 dollars to spend on 6 books. After buying them she had 11 dollars. How much did each book cost? Let b = cost of each book

Using two or more complete sentences, describe how you can find a vector parallel to b=-2,3

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?