Correct.
b+b+b+c+c+c+c =3b+4c
No, a C is not better than a C+. It is the other way around - A C+ is better than a C.
b + b + b + c + c + c + c = 3b + 4c
A plus b plus c equals d. A is the largest answer b is the smallest answer and d is less than 6?''
sum = a + b + c;
I don't know; we'll have to 'c' .
I believe that's usually treated as an axiom, meaning you don't prove it.
It is impossible to give any decimal/numeric value if we are not given the values of at least one variable, so the answer is B + B + B + C + C + C.
2b + 2c or 2(b + c)
For programming. C++ is better than C because it is object-oriented and has classes.
And how does this relate to coins?