That is your homework. Try to remember what syntactic rules you have been shown so far.
You could try to compile the code; the compiler will list problems that it sees. (That would obviously change your challenge from "regognize problems" to "understand what the compiler say".)
Did you copy the code from a book? cout << “Please enter amount of change in your pocket, using format 0.53 : “
This line does not compile. The code is missing a semi-colon (;) and more importantly, C++ only accepts this type of double-quotation sign (") not this (“).