Сколько стоит эта машина? Сколько стоят эти джинсы? Сколько стоила твоя машина? How much did your car cost? How much do these jeans cost? The price itself goes into the accusative case. How much does this car cost? You don't normally notice that it's accusative because the accusative of most numbers is the same as the nominative; but if the cost includes a feminine singular noun like копейка, then you will clearly see the accusative. Сколько стоил твой галстук? How much did your tie cost? Likewise the number тысяча ‘one thousand’ is a noun in form, so you may see its accusative form as well.
Original post blogged on b2evolution.
Одна конфета раньше стоила одну копейку. One piece of candy used to cost one copeck. These glasses cost a thousand dollars. Эти очки стоили тысячу долларов. One thing a beginner has to be careful about is the stress on these verb forms since they are different from the forms of стоять, even though they are mostly spelled the same. You can take a look here for a quick review of that verb.
Imperfective Infinitive стоить Past стоил стоила стоило стоили Present стою стоишь стоит стоим стоите стоят Future буду стоить будешь стоить будет стоить будем стоить будете стоить будут стоить Imperative not generally used The verb is mostly used in the third person. Bear in mind that the thing whose price you are discussing is the subject of the verb, so the verb has to agree with it:
The verb “to cost” in Russian is стоить: