Explain how complex fractions can be used to solve problems involving ratios

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

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

Abox holds 500 paperclips. after a week on the teacher's desk 239 paperclips remained. how many paperclips were used?