Click the link to view the question; http://img684.imageshack.us/img684/8093/deaqm.png I did all parts except for (c). Can someone show me how to do (c).

Click the link to view the question; http://img684.imageshack.us/img684/8093/deaqm.png I did all parts except for (c). Can someone show me how to do (c).

“Get 15% discount on your first 3 orders with us”
Use the following coupon
FIRST15

Order Now