This Venn diagram represents the science subjects studied by students. What is the probability that a student, chosen at random, does not study chemistry

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.)

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.