What is the more formal name used for describing the corporate-finance decision concerning which projects to invest in?

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

Could someone me with this question i’ve been stuck on it for 20 minutes

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?