Which city is cooler, mobile (3°f) or memphis (9°f)?

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

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.