Joran has 3 blue marbles and 8 red marbles. what is the ratio the blue marbles to red marbles??

A:3:3
B:3:5
C:3:8
D:3:11

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.)

Someone me! if you’re smart you can solve this!

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.