Sheila bought a box of 25 headbands.when she arranged the headbands by colorshe saw that 4 were green4 were red13 were blueand 4 were pink. what is the percent of blue headbands she bought?

To find the percent of blue headbands, divide the number of blue headbands (13) by the total number of headbands (25) and then multiply by 100.

[ \text{Percent of blue headbands} = \left(\frac{13}{25}\right) \times 100 = 52% ]

Sheila bought 52% blue headbands.