#57   Sofia has many nail polishes. All the nail polishes with the black caps cost $1.25. All the nail polishes with the white caps coat $0.75. All the nail polishes with the green, purple, pink, blue or red caps cost $1.75. All the nail polishes with the grey and sliver caps cost $1.50. And the nail polish with the pink metallic cap cost $2.25. How much money did Sofia spend on nail polishes in all?

Fascinating fact:  Painting one's nails goes back as early as 3000 BCE. There is archaeological evidence of the Ancient Babylonians painting their nails before they went into battle—with a solid gold manicure set.