Si es patrón es de 1/7 y el ultimo número es 14 cuáles son los numero de el medio?! Me urge plis es para hoy

What is the slope of the line shown below?

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how