It is a mixture.
It would be an mixture
both
A mixture. It's a combination of other things.
pure substance?
Pure substance.
Both. A mixture is a subset of substances.
No, it is a mixture; rarely a drug is a pure substance.
No a mixture is by definition not a pure substance.
yes matter can be both pure substances and mixtures
Because it is either a suspension or a solution or a mixture of both. No pure substance yet identified will provide all that is needed of an ink.
It is a mixture of substances
pure substance