Evaluate the expression for the given variable.
3-h divided by 4/5; h= 2/3

Which statement explains how you could use coordinate geometry to prove that quadrilateral abcd is a parallelogram? -5 -4 -3 -2 -1 t 1 2 3 4 prove that all sides are congruent and have slopes that are opposite reciprocals prove that segments ad and ab are congruent and parallel prove that opposite sides are congruent and have equal slopes prove that segments bc and cd are congruent and parallel

Can any one me with the answers to these questions asap?

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?