Weâve got cake and cookies for the party. Thereâll be cake and cookies at the party.
Like @Southernboy, Iâd go with âHow much for the coffee? How much for the tea?â, or âHow much for the coffee and the tea?â However, that last question isnât going to be that common - do you often see a situation when someone wants to pay for a coffee and a tea?
As an example, I think youâd say âCake and cookies is deliciousâ if you meant a combination of the two, thus forming a single food item, and âCake and cookies are deliciousâ if you meant them separately. Maybe âThere are cookies and cakeâŚâ would be less jarring.
There is one person waiting. There are three persons* waiting.
As for your question, cake is an interesting noun. [Perhaps @nz can chime in.]
One cake is made of all the pieces of cake that are inside of it, yes?
In this case âsomeâ indicates an amount. We donât know how many slices are left, but we know it [the cake] is not gone.
Because a cookie is essentially a single serving cake, there is not some cookie, there is a cookie, or there are some cookies. More than zero, less than infinity.
Sorry, went crazy there, hope this helped.
*persons is technically OK, âpeopleâ is more appropriate, but I wanted to keep it simple for the example
EDIT I never answered the question, lol. I would treat cake and cookies as a single set of desserts, so, I would say âthere is some cake and cookiesâ
Even in those cases though, wouldnât you just ask âHow much?â, or âHow much for the drinks?â
It could happen, sure, but it seems pretty unusual. If I have a coffee and my wife has a tea, and we have nothing else, and weâre with a group, and weâre trying to figure out the bill, yeah I suppose - but thatâs not something that happens often.
Underlying point: I think we often construct sentences to avoid slightly odd grammar issues like this one, where both options sound a bit off. I certainly do this consciously when Iâm writing. I suspect I also do so when speaking.
They are both correct, but some people are sticklers ( polite word for âassholesâ) about one or the other.
You can use the plural rule: Use âareâ because you are talking about a list composed of more than one thing.
Or
You can use the proximity rule: The first item you are referring to is singular, and so should be referred to with âisâ.
A good rule of thumb to remember is âanyone who cares about this is anal-retentive.â
This is because âcake and cookiesâ is treated as a plural subject. Even though âcakeâ is singular, the addition of âcookiesâ makes it plural, so you need the plural verb âare.â
How much is the coffee and the tea?
When referring to a pair of things like coffee and tea as a general idea (not focusing on each individually), you treat it as a singular entity, hence the singular verb âis.â