In need of assist, been on this question for a while now and don't know what to do, if someone can tell me the answer, i will appreciate it.

Let f(x) = x+3 and g(x) = 1/x the graph of (fog)(x) is shown below what is the range of (fog)(x)?

It says factor each expression 49x-28?

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