Answer:
I think it is c sorry if it's worng
Step-by-step explanation:
<span>m, because triangle ABC is similar to triangle EDC (by 3 congruent angles).</span>
2/9 - 7/12
First, multiply to find a common denominator. Multiply both pieces of the left fraction by 12, and both pieces of the right fraction by 9.
24/108 - 63/108 = -39/108 = -13/36
a= -13
b= 36
