18 Ib. Then her dog loses another 1 lb. Finally, it Cece dog
gains lb. What is the total change in her dog's weight? how your work. Pleasss help

Isabelle is mixing red and blue paint to make purple paint she adds 3/10 of a fluid ounce of red to 12/25 of a fluid ounce of blue to make 1 1/30 fluid ounces of purple how many fluid ounces of red paint ounces of red paint will she need to make 3 fluid ounces of purple paint