If charlotte started her homework at 9: 15 and finished in 7 hours and a half what time would it be?

To make this easier for us lets first add as many hours needed to get to 12:15.

12-9 = 3

7:30 - 3:00 = 4:30

Now that we are at 12:15 we just add the remainder of the time .

12:15 + 4:30 = 4:45

remember we are dealing with time so after 12 comes 1 unless you are using military time.

It would be 4:45

the sentence does not violate the phrase structure second rule (introduced by noam chomsky) because noun phrases consist of a determiner such as a, the or every, and a noun. in the sentence, the noun phrase the cake includes a determiner (the) and a noun (cake).

on the other hand, the first rule indicates that a sentence encloses a noun phrase, followed by a verb phrase. the example sentence can be analysed as follows:

john (n) + ate (v) + the (det) + cake (n).