38 + t = 63. what is the value of t?

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

Solve the triangle. a = 21°, c = 105°, c = 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.