A line has slope −1. It passes through the point Q(2, −n) and R(4, −3). What is the value of n?

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

The radius of a sphere is 3 inches. which represents the volume of the sphere?

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?