What is the value of x?

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

Find the equation of a line that is perpendicular to line g that contains (p, q). coordinate plane with line g that passes through the points negative 3 comma 6 and 0 comma 5 3x − y = 3p − q 3x + y = q − 3p x − y = p − q x + y = q − p