The angle of elevation E from A to B and the angle of depression D from B to A are given. Find the measure of each angle. E = 8x -8
D =5(x+5)

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

Astore has clearance items that have been marked down by 60%. they are having a sale, advertising an additional 55% off clearance items. what percent of the original price do you end up paying?