Bác lan thu hoạch được 10 tạ gạo nếp và 1,5 tấn gạo tẻ. hỏi bác lan thu được tất cả bao nhiêu tạ gạo

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

Orly uses 2 cups of raisins for every 12 cups of trail mix she makes. how many cups of trail mix will she make if she uses 8 cups of raisins?

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling