What is an equation of the line that passes through the points (5,5) and (5,−8)? i need the equation

Which graph represents the solution set for the given system of inequalities? x+2y< 3 x+y> 4 3x-2y> 4

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.

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30