很高兴为你解答!
Does that book cost you 24 yuan
解析：这是一个一般现在时的句子,当把此种句子变成疑问句时,要用助动词.三单人称用does,其它人称用do.
如要回答此类问句,回答用
Yes,he/she/it does.
No,he/she/it doesn“t.
Yes,you / I /We/they do.
No,you/ I /we /they don‘t.
希望对你有所帮助.宝贝,