| Answer | Crossword Clue |
|---|---|
| TIP | 15 percent of a bill, perhaps |
| TIP | Fifteen percent of a bill, perhaps |
| spiegels | a composition of iron that contains 15 to 30 percent manganese and 4.5 to 6.5 percent carbon |
| spiegel | lustrous, crystalline pig iron containing a large amount of manganese, sometimes 15 percent or more, used in making steel |
| graywackes | A dark coarse-grained sandstone containing more than 15 percent clay |
| graywacke | A dark coarse-grained sandstone containing more than 15 percent clay |
