か教えていただけませんか

could you tell me ...?

→ か
phrase Rare #27,762
could you tell me ...? A very polite way to ask someone for information. The か marks the preceding phrase as a question.
JA: 駅がどこにあるか教えていただけませんか。
EN: Could you tell me where the station is?

一番近くの教会はどこにあるか教えていただけませんか?

Could you tell me where the nearest church is?