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:
Imagine you have to carry a hawk (はこ). Imagine carrying it in your hands. It's trying to claw and peck itself free, but you don't let go. It is your job to carry this hawk with you everywhere.
Oh, and don’t forget to move the desk.
My duty as a father is to put food on the table and have tea parties with my daughter.
I want a bag to carry these textbooks.