If 2d+4=5,does 2d/4+6=5+4 why or why not

Pls me this is due today and i need i will make brainliest if you me answer correctly and i will report if you try to give me a dumb answer.

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15