Ineed with how to find the surface area of a triangular prism in general

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

The radius of the circle below intersects the unit circle at (3/5,4/5). what is the approximate value of theta? 0.6 radians 1.0 radians 36.9 degrees 53.1 degrees