What is the sum of the rational expressions below? 2x + 7 / x + 5 + x - 3 / x + 5

12 point are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr?

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Arestaurant offers a $12 dinner special that has 5 choices for an appetizer, 12 choices for an entrée, and 4 choices for a dessert. how many different meals are available when you select an appetizer, an entrée, and a dessert? a meal can be chosen in nothing ways. (type a whole number.)