What are y'all doing on valentines day? :D

Ab+cd-> ad+bc is what kind of reaction

When encountering an injured victim, what is the evaluation sequence

Andra has a family history of osteoporosis. her doctor advises her to eat foods rich in calcium. which foods should she add to her diet? a. fruits, especially grapes and berries b. unsaturated fats like olive and soybean oil c. beet greens, broccoli, and cheese