Hey, i haven't done algebra in forever so if anyone could me with this to refresh my memory, it'd make this summer packet so much easier.

Angle mno is s rotated 180 degrees counterclockwise about the origin to form angle m’n’o’. which statement shows the measure of angle m’n’o’?

The only way to identify an intercept is as an ordered pair. true false

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.