In a classroom, 1/10 of the students are wearing blue shirts , and 2/5 are wearing white shirts. There are 30 students in the classroom. How many students are wearing shirts other than blue shirts or white shirts?

Factor the expression using gcf 9b+45

Which of the following is an example of conditional probability

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.