1/13w - 4 is how this can be expressed algebraically.
27. B
28. 800 more people
29. He should receive $11.20 back. I came up with this by taking 81 (the total cost of the items) and subtracting 15%. After that, I got 68.85-the price after using the coupon. Then, I added the total amount of money he had and came up with 80 (he had 4 twenty dollar bills). Finally, I took away 68.85 from 80 and ended with the answer 11.20.
30. Store b is offering a better deal for the shoes. After using the percent discount for store a, I came up with 59.50. However, when I did the same with store b, I ended with 51.30, the better deal of the two stores.
You have to multiply 15 by 32 and you get 480 which means the publisher shipped 480 books to the bookstore
