F(n+1)=-0.5f(n) of the first term in the sequence is 120 what is f(5)?

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.

How is this equation completed? i cannot find any examples in the book.

Is the ordered pair (-10, 7) a solution to the equation y = 17 – x? yes or no