Which quadrant contains the terminal side of 320 degrees?

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

In which form is the following function written? y = - 2(x – 3)(x + 5)

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.