Design an algorithm to find the real roots of a quadratic equation of the form ax2+ bx +c =0 , where a, b, and c are real numbers, and a is nonzero.
A student spends a majority of his weekend playing and watching sports, thereby tiring him out and leading him to oversleep and often miss his Monday 8 AM math class. Suppose that the tuition per semester is $25,000 and the average semester consists of 15 units. If the math class meets three days a week, one hour each day for 15 weeks, and is a four-unit course, how much does each hour of math class cost the student? Design an algorithm that computes the cost of each math class.