A pharmacist orders medications for a total of $6,439.65. A 6.25% discount is given if payment is made within 15 days, and a 2.5% discount is given if payment is made within 30 days. How much money can be saved by paying in 15 days instead of 30 days?

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Well, l think that some effective communication is, emotional barriers and lack of attention, interest distraction or irrelevance. also some physical disabilities such as hearing problems or speech difficulties.      l hope i am correct  and you good luck.

1.controls blood flow2.controls oxygen flow3.carries oxygen rich blood to veins