20 POINTS, answer pls ty fill out the missing angle measures until you find x

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Read the following two statements. then use the law of syllogism to draw a conclusion. if the tv is too loud, then it will give me a headache. if i have a headache, then i will have to rest.

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles