"This one will cost about a million yen more." "I still don’t mind. I’ll take it."
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means care so the verb vocab version is to care about.
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you: Do you care a lot about grammar? I don't care, unless it has to do with commas (かま). Then I do flip out.